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| n | a(n) |
|---|---|
| 1 | 1 |
| 2 | 3 |
| 3 | 2 |
| 4 | 11 |
| 5 | 8 |
| 6 | 6 |
| 7 | 49 |
| 8 | 38 |
| 9 | 30 |
| 10 | 24 |
| 11 | 291 |
| 12 | 242 |
| 13 | 204 |
| 14 | 174 |
| 15 | 150 |
| 16 | 1979 |
| 17 | 1688 |
| 18 | 1446 |
| 19 | 1242 |
| 20 | 1068 |
| 21 | 918 |
| 22 | 15217 |
| 23 | 13238 |
| 24 | 11550 |
| 25 | 10104 |
| 26 | 8862 |
| 27 | 7794 |
| 28 | 6876 |
| 29 | 136659 |
| 30 | 121442 |
| 31 | 108204 |
| 32 | 96654 |
| 33 | 86550 |
| 34 | 77688 |
| 35 | 69894 |
| 36 | 63018 |
| 37 | 1349627 |
| 38 | 1212968 |
| 39 | 1091526 |
| 40 | 983322 |
| 41 | 886668 |
| 42 | 800118 |
| 43 | 722430 |
| 44 | 652536 |
| 45 | 589518 |
| 46 | 14561425 |
| 47 | 13211798 |
| 48 | 11998830 |
| 49 | 10907304 |
| 50 | 9923982 |
| 51 | 9037314 |
| 52 | 8237196 |
| 53 | 7514766 |
| 54 | 6862230 |
| 55 | 6272712 |
[1,3,2,11,8,6,49,38,30,24,291,242,204,174,150, 1979,1688,1446,1242,1068,918,15217,13238,11550, 10104,8862,7794,6876,136659,121442,108204,96654, 86550,77688,69894,63018,1349627,1212968,1091526, 983322,886668,800118,722430,652536,589518, 14561425,13211798,11998830,10907304,9923982, 9037314,8237196,7514766,6862230,6272712] |