The OEIS is supported by the many generous donors to the OEIS Foundation.
| n | a(n) |
|---|---|
| 1 | 36 |
| 2 | 170 |
| 3 | 532 |
| 4 | 1458 |
| 5 | 3800 |
| 6 | 10014 |
| 7 | 26052 |
| 8 | 70202 |
| 9 | 188180 |
| 10 | 522042 |
| 11 | 1439540 |
| 12 | 4085606 |
| 13 | 11496000 |
| 14 | 33144154 |
| 15 | 94513280 |
| 16 | 275391210 |
| 17 | 792226416 |
| 18 | 2325106662 |
| 19 | 6728275612 |
| 20 | 19846394074 |
| 21 | 57663996620 |
| 22 | 170698669690 |
| 23 | 497380837436 |
| 24 | 1476128070406 |
[36,170,532,1458,3800,10014,26052,70202,188180, 522042,1439540,4085606,11496000,33144154,94513280, 275391210,792226416,2325106662,6728275612, 19846394074,57663996620,170698669690,497380837436, 1476128070406] |