The OEIS is supported by the many generous donors to the OEIS Foundation.
| n | a(n) |
|---|---|
| 0 | 1 |
| 1 | 1 |
| 2 | 1 |
| 3 | 1 |
| 4 | 1 |
| 5 | 1 |
| 6 | 1 |
| 7 | 1 |
| 8 | 2 |
| 9 | 1 |
| 10 | 1 |
| 11 | 1 |
| 12 | 3 |
| 13 | 7 |
| 14 | 1 |
| 15 | 1 |
| 16 | 1 |
| 17 | 4 |
| 18 | 13 |
| 19 | 34 |
| 20 | 1 |
| 21 | 1 |
| 22 | 1 |
| 23 | 5 |
| 24 | 19 |
| 25 | 85 |
| 26 | 216 |
| 27 | 1 |
| 28 | 1 |
| 29 | 1 |
| 30 | 6 |
| 31 | 25 |
| 32 | 154 |
| 33 | 701 |
| 34 | 1696 |
| 35 | 1 |
| 36 | 1 |
| 37 | 1 |
| 38 | 7 |
| 39 | 31 |
| 40 | 241 |
| 41 | 1456 |
| 42 | 7261 |
| 43 | 15898 |
| 44 | 1 |
| 45 | 1 |
| 46 | 1 |
| 47 | 8 |
| 48 | 37 |
| 49 | 346 |
| 50 | 2481 |
| 51 | 18136 |
| 52 | 89125 |
| 53 | 173468 |
| 54 | 1 |
| 55 | 1 |
| 56 | 1 |
| 57 | 9 |
| 58 | 43 |
| 59 | 469 |
| 60 | 3776 |
| 61 | 35761 |
| 62 | 260002 |
| 63 | 1277865 |
| 64 | 2161036 |
| 65 | 1 |
[1,1,1,1,1,1,1,1,2,1,1,1,3,7,1,1,1,4,13,34,1,1,1, 5,19,85,216,1,1,1,6,25,154,701,1696,1,1,1,7,31, 241,1456,7261,15898,1,1,1,8,37,346,2481,18136, 89125,173468,1,1,1,9,43,469,3776,35761,260002, 1277865,2161036,1] |