The OEIS is supported by the many generous donors to the OEIS Foundation.
| n | a(n) |
|---|---|
| 0 | 1 |
| 1 | 16 |
| 2 | 93 |
| 3 | 340 |
| 4 | 950 |
| 5 | 2226 |
| 6 | 4606 |
| 7 | 8688 |
| 8 | 15255 |
| 9 | 25300 |
| 10 | 40051 |
| 11 | 60996 |
| 12 | 89908 |
| 13 | 128870 |
| 14 | 180300 |
| 15 | 246976 |
| 16 | 332061 |
| 17 | 439128 |
| 18 | 572185 |
| 19 | 735700 |
| 20 | 934626 |
| 21 | 1174426 |
| 22 | 1461098 |
| 23 | 1801200 |
| 24 | 2201875 |
| 25 | 2670876 |
| 26 | 3216591 |
| 27 | 3848068 |
| 28 | 4575040 |
| 29 | 5407950 |
| 30 | 6357976 |
[1,16,93,340,950,2226,4606,8688,15255,25300,40051, 60996,89908,128870,180300,246976,332061,439128, 572185,735700,934626,1174426,1461098,1801200, 2201875,2670876,3216591,3848068,4575040,5407950, 6357976] |