The OEIS is supported by the many generous donors to the OEIS Foundation.
| n | a(n) |
|---|---|
| 1 | 0 |
| 2 | 5 |
| 3 | 42 |
| 4 | 151 |
| 5 | 548 |
| 6 | 1185 |
| 7 | 2542 |
| 8 | 4403 |
| 9 | 7608 |
| 10 | 13621 |
| 11 | 20834 |
| 12 | 32535 |
| 13 | 47980 |
| 14 | 65609 |
| 15 | 88278 |
| 16 | 119947 |
| 17 | 162368 |
| 18 | 208869 |
| 19 | 269194 |
| 20 | 340007 |
| 21 | 416580 |
| 22 | 512305 |
| 23 | 622286 |
| 24 | 756003 |
| 25 | 925432 |
| 26 | 1114661 |
| 27 | 1314498 |
| 28 | 1537015 |
| 29 | 1771628 |
| 30 | 2031993 |
| 31 | 2393158 |
| 32 | 2786315 |
[0,5,42,151,548,1185,2542,4403,7608,13621,20834, 32535,47980,65609,88278,119947,162368,208869, 269194,340007,416580,512305,622286,756003,925432, 1114661,1314498,1537015,1771628,2031993,2393158, 2786315] |