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Reminder: The OEIS is hiring a new managing editor, and the application deadline is January 26.
| n | a(n) |
|---|---|
| 0 | 1 |
| 1 | 30 |
| 2 | 185 |
| 3 | 886 |
| 4 | 3855 |
| 5 | 16064 |
| 6 | 65569 |
| 7 | 264930 |
| 8 | 1065059 |
| 9 | 4270948 |
| 10 | 17105253 |
| 11 | 68463974 |
| 12 | 273941863 |
| 13 | 1095939432 |
| 14 | 4384101737 |
| 15 | 17537095018 |
| 16 | 70149756267 |
| 17 | 280601777516 |
| 18 | 1122412615021 |
| 19 | 4489661470062 |
| 20 | 17958667900271 |
| 21 | 71834715641200 |
| 22 | 287338950645105 |
| 23 | 1149355978741106 |
[1,30,185,886,3855,16064,65569,264930,1065059, 4270948,17105253,68463974,273941863,1095939432, 4384101737,17537095018,70149756267,280601777516, 1122412615021,4489661470062,17958667900271, 71834715641200,287338950645105,1149355978741106] |