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| n | a(n) |
|---|---|
| 1 | 0 |
| 2 | 254 |
| 3 | 11675 |
| 4 | 571214 |
| 5 | 28772962 |
| 6 | 1459438050 |
| 7 | 73654449669 |
| 8 | 3717851037151 |
| 9 | 187699707259842 |
| 10 | 9476189368415446 |
| 11 | 478407914745643442 |
| 12 | 24152577356822109201 |
| 13 | 1219351305393469653908 |
| 14 | 61559372518202872739319 |
[0,254,11675,571214,28772962,1459438050, 73654449669,3717851037151,187699707259842, 9476189368415446,478407914745643442, 24152577356822109201,1219351305393469653908, 61559372518202872739319] |