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| n | a(n) |
|---|---|
| 1 | 1 |
| 2 | 1 |
| 3 | 4 |
| 4 | 4 |
| 5 | 18 |
| 6 | 34 |
| 7 | 11 |
| 8 | 354 |
| 9 | 1067 |
| 10 | 500 |
| 11 | 41 |
| 12 | 7749 |
| 13 | 175884 |
| 14 | 133265 |
| 15 | 10867 |
| 16 | 162 |
| 17 | 231799 |
| 18 | 35910351 |
| 19 | 188834753 |
| 20 | 24424881 |
| 21 | 313132 |
| 22 | 715 |
| 23 | 8178855 |
| 24 | 8769708263 |
| 25 | 283323771619 |
| 26 | 253155125338 |
| 27 | 5178830173 |
| 28 | 10856948 |
| 29 | 3424 |
| 30 | 318511707 |
| 31 | 2254551356877 |
[1,1,4,4,18,34,11,354,1067,500,41,7749,175884, 133265,10867,162,231799,35910351,188834753, 24424881,313132,715,8178855,8769708263, 283323771619,253155125338,5178830173,10856948, 3424,318511707,2254551356877] |