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| n | a(n) |
|---|---|
| 0 | 1 |
| 1 | 26 |
| 2 | -574 |
| 3 | -79924 |
| 4 | 74476 |
| 5 | 401556376 |
| 6 | 9974990776 |
| 7 | -2752323059824 |
| 8 | -158841568845424 |
| 9 | 23393349808258976 |
| 10 | 2395194744525753376 |
| 11 | -230141809245567612224 |
| 12 | -38917614777613866837824 |
| 13 | 2440269154465553645576576 |
| 14 | 695858238152329730899630976 |
| 15 | -24612396011186615794199674624 |
[1,26,-574,-79924,74476,401556376,9974990776, -2752323059824,-158841568845424,23393349808258976, 2395194744525753376,-230141809245567612224, -38917614777613866837824, 2440269154465553645576576, 695858238152329730899630976, -24612396011186615794199674624] |