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| n | a(n) |
|---|---|
| 0 | 1 |
| 1 | 0 |
| 2 | 0 |
| 3 | 0 |
| 4 | 197142 |
| 5 | 49152 |
| 6 | 17938944 |
| 7 | 13565952 |
| 8 | 500022972 |
| 9 | 549519360 |
| 10 | 7119111168 |
| 11 | 8746696704 |
| 12 | 64795688552 |
| 13 | 80374972416 |
| 14 | 426695568384 |
| 15 | 515432841216 |
| 16 | 2207141692182 |
| 17 | 2563069771776 |
| 18 | 9461992962048 |
[1,0,0,0,197142,49152,17938944,13565952,500022972, 549519360,7119111168,8746696704,64795688552, 80374972416,426695568384,515432841216, 2207141692182,2563069771776,9461992962048] |