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| n | a(n) |
|---|---|
| 12 | 1 |
| 13 | 13 |
| 14 | 76 |
| 15 | 295 |
| 16 | 889 |
| 17 | 2188 |
| 18 | 4652 |
| 19 | 8891 |
| 20 | 15686 |
| 21 | 26011 |
| 22 | 41056 |
| 23 | 62251 |
| 24 | 91291 |
| 25 | 130162 |
| 26 | 181168 |
| 27 | 246959 |
| 28 | 330560 |
| 29 | 435401 |
| 30 | 565348 |
| 31 | 724735 |
| 32 | 918397 |
| 33 | 1151704 |
| 34 | 1430596 |
| 35 | 1761619 |
| 36 | 2151962 |
| 37 | 2609495 |
| 38 | 3142808 |
| 39 | 3761251 |
| 40 | 4474975 |
| 41 | 5294974 |
| 42 | 6233128 |
[1,13,76,295,889,2188,4652,8891,15686,26011,41056, 62251,91291,130162,181168,246959,330560,435401, 565348,724735,918397,1151704,1430596,1761619, 2151962,2609495,3142808,3761251,4474975,5294974, 6233128] |