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| n | a(n) |
|---|---|
| 0 | 1 |
| 1 | 0 |
| 2 | 7 |
| 3 | 2 |
| 4 | 25 |
| 5 | 16 |
| 6 | 31 |
| 7 | 162 |
| 8 | 57 |
| 9 | 848 |
| 10 | 863 |
| 11 | 1826 |
| 12 | 2873 |
| 13 | 3792 |
| 14 | 30111 |
| 15 | 8994 |
| 16 | 71609 |
| 17 | 117200 |
| 18 | 184031 |
| 19 | 120738 |
| 20 | 1743289 |
| 21 | 1242960 |
| 22 | 1256223 |
| 23 | 9897634 |
| 24 | 13364793 |
| 25 | 32266064 |
| 26 | 39537503 |
| 27 | 58150690 |
| 28 | 381383481 |
| 29 | 207533776 |
| 30 | 1533472159 |
| 31 | 921525026 |
| 32 | 6163019705 |
| 33 | 3548342736 |
[1,0,7,2,25,16,31,162,57,848,863,1826,2873,3792, 30111,8994,71609,117200,184031,120738,1743289, 1242960,1256223,9897634,13364793,32266064, 39537503,58150690,381383481,207533776,1533472159, 921525026,6163019705,3548342736] |