Best-known CA bounds for t=4, v=2
| k | N | Array | Method / Source |
|---|---|---|---|
| 5 | 16 | Derive from strength 5 | |
| 6 | 21 | Derive from strength 5 | |
| 12 | 24 | Cyclotomy (Colbourn) | |
| 13 | 32 | Derive from strength 5 | |
| 17 | 35 | simulated annealing (TJ-RT) | |
| 18 | 36 | simulated annealing (TJ-RT) | |
| 20 | 39 | Hadamard (Colbourn-Keri) postop NCK | |
| 21 | 42 | Cyclic (Colbourn-Keri) | |
| 22 | 44 | Cyclic (Colbourn-Keri) | |
| 24 | 46 | Cyclotomy (Colbourn) | |
| 25 | 50 | Cyclic (Colbourn-Keri) | |
| 26 | 51 | simulated annealing (TJ-RT) | |
| 28 | 53 | simulated annealing (TJ-RT) | |
| 30 | 56 | simulated annealing (TJ-RT) | |
| 32 | 58 | simulated annealing (TJ-RT) | |
| 33 | 61 | simulated annealing (TJ-RT) | |
| 34 | 63 | SBSTT (TJ-AG) | |
| 35 | 64 | simulated annealing (TJ-RT) | |
| 37 | 65 | simulated annealing (TJ-RT) | |
| 38 | 66 | simulated annealing (TJ-RT) | |
| 67 | 67 | Cyclotomy (Colbourn) | |
| 71 | 71 | Cyclotomy (Colbourn) | |
| 72 | 78 | SBSTT (TJ-AG) | |
| 79 | 79 | Derive from strength 5 | |
| 83 | 83 | Cyclotomy (Colbourn) | |
| 89 | 87 | Cyclotomy (Colbourn) postop NCK | |
| 90 | 92 | SBSTT (TJ-AG) | |
| 97 | 94 | SBSTT (TJ-AG) | |
| 101 | 98 | SBSTT (TJ-AG) | |
| 107 | 102 | SBSTT (TJ-AG) | |
| 109 | 105 | SBSTT (TJ-AG) | |
| 111 | 106 | SBSTT (TJ-AG) | |
| 113 | 107 | SBSTT (TJ-AG) | |
| 114 | 109 | SBSTT (TJ-AG) | |
| 120 | 110 | Power CZ2-12.4-10.1 | |
| 144 | 112 | Power CT12^2,c | |
| 145 | 119 | SBSTT (TJ-AG) | |
| 146 | 122 | SBSTT (TJ-AG) | |
| 149 | 125 | SBSTT (TJ-AG) | |
| 151 | 126 | SBSTT (TJ-AG) | |
| 155 | 127 | SBSTT (TJ-AG) | |
| 157 | 128 | SBSTT (TJ-AG) | |
| 160 | 129 | SBSTT (TJ-AG) | |
| 165 | 130 | SBSTT (TJ-AG) | |
| 169 | 131 | SBSTT (TJ-AG) | |
| 172 | 134 | SBSTT (TJ-AG) | |
| 173 | 135 | SBSTT (TJ-AG) | |
| 179 | 142 | SBSTT (TJ-AG) | |
| 189 | 143 | SBSTT (TJ-AG) | |
| 192 | 144 | SBSTT (TJ-AG) | |
| 196 | 145 | SBSTT (TJ-AG) | |
| 208 | 154 | SBSTT (TJ-AG) | |
| 213 | 156 | SBSTT (TJ-AG) | |
| 217 | 157 | SBSTT (TJ-AG) | |
| 222 | 158 | SBSTT (TJ-AG) | |
| 256 | 160 | Power CZ2-16.5 | |
| 268 | 161 | SBSTT (TJ-AG) | |
| 272 | 162 | Power CZ2-17.4-16.1 | |
| 289 | 165 | SBSTT (TJ-AG) | |
| 296 | 167 | SBSTT (TJ-AG) | |
| 324 | 168 | SBSTT (TJ-AG) | |
| 338 | 173 | Torres-Jimenez | |
| 354 | 174 | Torres-Jimenez | |
| 405 | 176 | Power CZ3-9.8-5.1 | |
| 486 | 180 | Power CZ3-9.8-6.1 | |
| 729 | 184 | Power CZ3-9.9 | |
| 792 | 188 | Power CZ3-11.7-8.1-9.1 | |
| 880 | 190 | Power CZ3-11.7-8.1-10.1 | |
| 968 | 192 | Power CZ3-11.8-8.1 | |
| 990 | 194 | Power CZ3-11.7-9.1-10.1 | |
| 1100 | 196 | Power CZ3-11.7-10.1-10.1 | |
| 1210 | 198 | Power CZ3-11.8-10.1 | |
| 1332 | 200 | Power CT11^3,+1c | |
| 1368 | 216 | Power CZ3-13.3-12.6 | |
| 1476 | 224 | Power CZ3-13.4-12.5 | |
| 1596 | 233 | Power CZ3-13.5-12.4 | |
| 1728 | 242 | Power CZ3-13.6-12.3 | |
| 1872 | 251 | Power CZ3-13.7-12.1-12.1 | |
| 2028 | 260 | Power CZ3-13.8-12.1 | |
| 2304 | 263 | Power CZ3-16.7-12.1-12.1 | |
| 2496 | 271 | Power CZ3-16.7-12.1-13.1 | |
| 3395 | 272 | Power CZ4-13.0-12.12-4.1 | |
| 4248 | 276 | Power CZ4-13.0-12.12-5.1 | |
| 6781 | 280 | Power CZ4-13.0-12.12-8.1 | |
| 7625 | 284 | Power CZ4-13.0-12.12-9.1 | |
| 8466 | 286 | Power CZ4-13.0-12.12-10.1 | |
| 10000 | 288 | Power CT13^4S13c |
Checkmark key: ✓ array available (verified) · ✓ array available (unverified)