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| n | a(n) |
|---|---|
| 1 | 1904 |
| 2 | 3136 |
| 3 | 13800 |
| 4 | 23936 |
| 5 | 76840 |
| 6 | 175328 |
| 7 | 438504 |
| 8 | 1151296 |
| 9 | 2656232 |
| 10 | 7032608 |
| 11 | 17090280 |
| 12 | 42368896 |
| 13 | 111988680 |
| 14 | 261552224 |
| 15 | 723071304 |
| 16 | 1661410368 |
| 17 | 4573702312 |
| 18 | 10671650720 |
| 19 | 28629961640 |
| 20 | 68211963648 |
| 21 | 179436757256 |
| 22 | 431899660512 |
[1904,3136,13800,23936,76840,175328,438504, 1151296,2656232,7032608,17090280,42368896, 111988680,261552224,723071304,1661410368, 4573702312,10671650720,28629961640,68211963648, 179436757256,431899660512] |