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| n | a(n) |
|---|---|
| 1 | 47160 |
| 2 | 501516 |
| 3 | 3609684 |
| 4 | 21645828 |
| 5 | 117137700 |
| 6 | 594466020 |
| 7 | 2889375588 |
| 8 | 13620124260 |
| 9 | 62765849700 |
| 10 | 284277930084 |
| 11 | 1270122831972 |
| 12 | 5612855201892 |
| 13 | 24581542031460 |
| 14 | 106848038187108 |
| 15 | 461482510708836 |
| 16 | 1982297444839524 |
[47160,501516,3609684,21645828,117137700, 594466020,2889375588,13620124260,62765849700, 284277930084,1270122831972,5612855201892, 24581542031460,106848038187108,461482510708836, 1982297444839524] |