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| n | a(n) |
|---|---|
| 10 | 1 |
| 11 | 56 |
| 12 | 1992 |
| 13 | 58566 |
| 14 | 1569387 |
| 15 | 40210458 |
| 16 | 1011778943 |
| 17 | 25407870031 |
| 18 | 643294838111 |
| 19 | 16530707226038 |
| 20 | 433032539982493 |
| 21 | 11597633757170403 |
| 22 | 318186179384754262 |
| 23 | 8953723541105483282 |
| 24 | 258628065642282683675 |
| 25 | 7671629851218367059371 |
| 26 | 233734404206144319940526 |
[1,56,1992,58566,1569387,40210458,1011778943, 25407870031,643294838111,16530707226038, 433032539982493,11597633757170403, 318186179384754262,8953723541105483282, 258628065642282683675,7671629851218367059371, 233734404206144319940526] |