The OEIS is supported by the many generous donors to the OEIS Foundation.
| n | a(n) |
|---|---|
| 1 | 0 |
| 2 | 0 |
| 3 | 1 |
| 4 | 2 |
| 5 | 5 |
| 6 | 41 |
| 7 | 71 |
| 8 | 71 |
| 9 | 198 |
| 10 | 313 |
| 11 | 484 |
| 12 | 922 |
| 13 | 1153 |
| 14 | 1201 |
| 15 | 2105 |
| 16 | 1565 |
| 17 | 2588 |
| 18 | 4046 |
| 19 | 5001 |
| 20 | 7443 |
| 21 | 7443 |
| 22 | 8851 |
| 23 | 10671 |
| 24 | 19589 |
| 25 | 16570 |
| 26 | 16935 |
| 27 | 22254 |
| 28 | 25313 |
| 29 | 25313 |
| 30 | 25313 |
| 31 | 42891 |
| 32 | 28793 |
| 33 | 32768 |
| 34 | 52795 |
| 35 | 65504 |
| 36 | 59178 |
| 37 | 73355 |
| 38 | 89033 |
| 39 | 88632 |
| 40 | 107660 |
| 41 | 129045 |
| 42 | 129045 |
| 43 | 153471 |
| 44 | 167646 |
| 45 | 167646 |
| 46 | 182446 |
| 47 | 182446 |
| 48 | 336130 |
| 49 | 197244 |
| 50 | 233297 |
| 51 | 330472 |
| 52 | 307358 |
| 53 | 270167 |
| 54 | 355325 |
| 55 | 378466 |
| 56 | 332156 |
[0,0,1,2,5,41,71,71,198,313,484,922,1153,1201, 2105,1565,2588,4046,5001,7443,7443,8851,10671, 19589,16570,16935,22254,25313,25313,25313,42891, 28793,32768,52795,65504,59178,73355,89033,88632, 107660,129045,129045,153471,167646,167646,182446, 182446,336130,197244,233297,330472,307358,270167, 355325,378466,332156] |