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| n | a(n) |
|---|---|
| 0 | 1 |
| 1 | 1 |
| 2 | 7 |
| 3 | 4 |
| 4 | 29 |
| 5 | 23 |
| 6 | 124 |
| 7 | 69 |
| 8 | 471 |
| 9 | 380 |
| 10 | 1989 |
| 11 | 1111 |
| 12 | 7548 |
| 13 | 6085 |
| 14 | 31831 |
| 15 | 17788 |
| 16 | 120773 |
| 17 | 97367 |
| 18 | 509308 |
| 19 | 284613 |
| 20 | 1932375 |
| 21 | 1557884 |
| 22 | 8148933 |
| 23 | 4553815 |
| 24 | 30918012 |
| 25 | 24926149 |
| 26 | 130382935 |
| 27 | 72861052 |
| 28 | 494688197 |
| 29 | 398818391 |
| 30 | 2086126972 |
| 31 | 1165776837 |
| 32 | 7915011159 |
| 33 | 6381094268 |
[1,1,7,4,29,23,124,69,471,380,1989,1111,7548,6085, 31831,17788,120773,97367,509308,284613,1932375, 1557884,8148933,4553815,30918012,24926149, 130382935,72861052,494688197,398818391,2086126972, 1165776837,7915011159,6381094268] |