The OEIS is supported by the many generous donors to the OEIS Foundation.
| n | a(n) |
|---|---|
| 1 | 144 |
| 2 | 2745 |
| 3 | 54756 |
| 4 | 1086300 |
| 5 | 21511044 |
| 6 | 426058380 |
| 7 | 8439361956 |
| 8 | 167165327340 |
| 9 | 3311169794244 |
| 10 | 65586863070540 |
| 11 | 1299129134512356 |
| 12 | 25732843496983980 |
| 13 | 509710092283466244 |
| 14 | 10096217247223673100 |
| 15 | 199983489178768081956 |
[144,2745,54756,1086300,21511044,426058380, 8439361956,167165327340,3311169794244, 65586863070540,1299129134512356,25732843496983980, 509710092283466244,10096217247223673100, 199983489178768081956] |