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| n | a(n) |
|---|---|
| 0 | 1 |
| 1 | 1 |
| 2 | 1 |
| 3 | 1 |
| 4 | -20 |
| 5 | 1 |
| 6 | 1 |
| 7 | 421 |
| 8 | 421 |
| 9 | 1 |
| 10 | 1 |
| 11 | -8840 |
| 12 | 186082 |
| 13 | -8840 |
| 14 | 1 |
| 15 | 1 |
| 16 | 185641 |
| 17 | 82053322 |
| 18 | 82053322 |
| 19 | 185641 |
| 20 | 1 |
| 21 | 1 |
| 22 | -3898460 |
| 23 | 36185700643 |
| 24 | -759813761720 |
| 25 | 36185700643 |
| 26 | -3898460 |
| 27 | 1 |
| 28 | 1 |
| 29 | 81867661 |
| 30 | 15957890085103 |
| 31 | 7036671432989563 |
[1,1,1,1,-20,1,1,421,421,1,1,-8840,186082,-8840,1, 1,185641,82053322,82053322,185641,1,1,-3898460, 36185700643,-759813761720,36185700643,-3898460,1, 1,81867661,15957890085103,7036671432989563] |