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A036631 as a simple table
| n | a(n) |
|---|---|
| 0 | 0 |
| 1 | 0 |
| 2 | 0 |
| 3 | 0 |
| 4 | 0 |
| 5 | 0 |
| 6 | 0 |
| 7 | 1 |
| 8 | 6 |
| 9 | 26 |
| 10 | 94 |
| 11 | 302 |
| 12 | 900 |
| 13 | 2546 |
| 14 | 6931 |
| 15 | 18341 |
| 16 | 47474 |
| 17 | 120750 |
| 18 | 302741 |
| 19 | 750050 |
| 20 | 1839421 |
| 21 | 4471759 |
| 22 | 10787891 |
| 23 | 25849612 |
| 24 | 61564934 |
| 25 | 145828769 |
| 26 | 343713516 |
| 27 | 806462038 |
| 28 | 1884353462 |
| 29 | 4386038531 |
| 30 | 10172642984 |
| 31 | 23515472829 |
| 32 | 54190799650 |
[0,0,0,0,0,0,0,1,6,26,94,302,900,2546,6931,18341, 47474,120750,302741,750050,1839421,4471759, 10787891,25849612,61564934,145828769,343713516, 806462038,1884353462,4386038531,10172642984, 23515472829,54190799650] |