The OEIS is supported by the many generous donors to the OEIS Foundation.
| n | a(n) |
|---|---|
| 0 | 0 |
| 1 | 1 |
| 2 | 1 |
| 3 | 4 |
| 4 | 1 |
| 5 | 11 |
| 6 | 7 |
| 7 | 57 |
| 8 | 1 |
| 9 | 28 |
| 10 | 21 |
| 11 | 265 |
| 12 | 13 |
| 13 | 365 |
| 14 | 211 |
| 15 | 3616 |
| 16 | 1 |
| 17 | 69 |
| 18 | 55 |
| 19 | 1141 |
| 20 | 41 |
| 21 | 1828 |
| 22 | 1013 |
| 23 | 25439 |
| 24 | 25 |
| 25 | 1951 |
| 26 | 1405 |
| 27 | 41608 |
| 28 | 813 |
| 29 | 50519 |
| 30 | 27931 |
| 31 | 954305 |
| 32 | 1 |
| 33 | 166 |
| 34 | 137 |
| 35 | 5041 |
| 36 | 109 |
| 37 | 8363 |
| 38 | 4447 |
| 39 | 182638 |
| 40 | 81 |
| 41 | 10251 |
| 42 | 7183 |
| 43 | 327403 |
| 44 | 3961 |
| 45 | 372736 |
| 46 | 198997 |
| 47 | 9971521 |
| 48 | 49 |
| 49 | 9801 |
[0,1,1,4,1,11,7,57,1,28,21,265,13,365,211,3616,1, 69,55,1141,41,1828,1013,25439,25,1951,1405,41608, 813,50519,27931,954305,1,166,137,5041,109,8363, 4447,182638,81,10251,7183,327403,3961,372736, 198997,9971521,49,9801] |