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| n | a(n) |
|---|---|
| 7 | 1 |
| 8 | 2 |
| 9 | 15 |
| 10 | 79 |
| 11 | 420 |
| 12 | 1744 |
| 13 | 6197 |
| 14 | 18715 |
| 15 | 50042 |
| 16 | 118121 |
| 17 | 250025 |
| 18 | 475791 |
| 19 | 820987 |
| 20 | 1287695 |
| 21 | 1845875 |
| 22 | 2423114 |
| 23 | 2923474 |
| 24 | 3246721 |
| 25 | 3327677 |
| 26 | 3150758 |
| 27 | 2761802 |
| 28 | 2242711 |
| 29 | 1690526 |
| 30 | 1183725 |
| 31 | 771951 |
| 32 | 469281 |
| 33 | 267108 |
| 34 | 142542 |
| 35 | 71844 |
| 36 | 34271 |
| 37 | 15685 |
| 38 | 6861 |
| 39 | 2948 |
| 40 | 1223 |
| 41 | 513 |
| 42 | 209 |
| 43 | 90 |
| 44 | 34 |
| 45 | 16 |
| 46 | 6 |
| 47 | 3 |
| 48 | 1 |
| 49 | 1 |
[1,2,15,79,420,1744,6197,18715,50042,118121, 250025,475791,820987,1287695,1845875,2423114, 2923474,3246721,3327677,3150758,2761802,2242711, 1690526,1183725,771951,469281,267108,142542,71844, 34271,15685,6861,2948,1223,513,209,90,34,16,6,3,1, 1] |