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Reminder: The OEIS is hiring a new managing editor, and the application deadline is January 26.
| n | a(n) |
|---|---|
| 0 | 0 |
| 1 | 1 |
| 2 | 5 |
| 3 | 11 |
| 4 | 60 |
| 5 | 371 |
| 6 | 431 |
| 7 | 2074774 |
| 8 | 2075205 |
| 9 | 4149979 |
| 10 | 10375163 |
| 11 | 24900305 |
| 12 | 60175773 |
| 13 | 85076078 |
| 14 | 145251851 |
| 15 | 230327929 |
| 16 | 1527219425 |
| 17 | 7866425054 |
| 18 | 9393644479 |
| 19 | 787538916811 |
| 20 | 5522166062156 |
| 21 | 11831871041123 |
| 22 | 17354037103279 |
| 23 | 29185908144402 |
| 24 | 46539945247681 |
| 25 | 401505470125850 |
| 26 | 2054067295876931 |
[0,1,5,11,60,371,431,2074774,2075205,4149979, 10375163,24900305,60175773,85076078,145251851, 230327929,1527219425,7866425054,9393644479, 787538916811,5522166062156,11831871041123, 17354037103279,29185908144402,46539945247681, 401505470125850,2054067295876931] |