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| n | a(n) |
|---|---|
| 1 | 0 |
| 2 | 0 |
| 3 | 241209 |
| 4 | 13907664 |
| 5 | 663476572 |
| 6 | 29340232714 |
| 7 | 1239784258612 |
| 8 | 50762954675186 |
| 9 | 2032908127837419 |
| 10 | 80080573259154704 |
| 11 | 3113883115269131234 |
| 12 | 119819798899454537026 |
| 13 | 4571113264552325706845 |
| 14 | 173137719486843965997050 |
[0,0,241209,13907664,663476572,29340232714, 1239784258612,50762954675186,2032908127837419, 80080573259154704,3113883115269131234, 119819798899454537026,4571113264552325706845, 173137719486843965997050] |