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| n | a(n) |
|---|---|
| 0 | 1 |
| 1 | 4 |
| 2 | 1 |
| 3 | 26 |
| 4 | 10 |
| 5 | 1 |
| 6 | 232 |
| 7 | 110 |
| 8 | 16 |
| 9 | 1 |
| 10 | 2657 |
| 11 | 1435 |
| 12 | 248 |
| 13 | 22 |
| 14 | 1 |
| 15 | 37405 |
| 16 | 22135 |
| 17 | 4240 |
| 18 | 440 |
| 19 | 28 |
| 20 | 1 |
| 21 | 627435 |
| 22 | 397820 |
| 23 | 81708 |
| 24 | 9295 |
| 25 | 686 |
| 26 | 34 |
| 27 | 1 |
| 28 | 12248365 |
| 29 | 8203057 |
| 30 | 1773156 |
| 31 | 214478 |
| 32 | 17248 |
| 33 | 986 |
| 34 | 40 |
| 35 | 1 |
| 36 | 273211787 |
| 37 | 191405232 |
| 38 | 43039532 |
| 39 | 5442349 |
| 40 | 463267 |
| 41 | 28747 |
| 42 | 1340 |
[1,4,1,26,10,1,232,110,16,1,2657,1435,248,22,1, 37405,22135,4240,440,28,1,627435,397820,81708, 9295,686,34,1,12248365,8203057,1773156,214478, 17248,986,40,1,273211787,191405232,43039532, 5442349,463267,28747,1340] |