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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 | 1 |
| 2 | 1 |
| 3 | 6 |
| 4 | 12 |
| 5 | 19 |
| 6 | 48 |
| 7 | 147 |
| 8 | 305 |
| 9 | 628 |
| 10 | 1607 |
| 11 | 3748 |
| 12 | 8140 |
| 13 | 18779 |
| 14 | 44521 |
| 15 | 102625 |
| 16 | 233230 |
| 17 | 540343 |
| 18 | 1254459 |
| 19 | 2877651 |
| 20 | 6614799 |
| 21 | 15288779 |
| 22 | 35283125 |
| 23 | 81210949 |
| 24 | 187173219 |
| 25 | 431917054 |
| 26 | 995565240 |
| 27 | 2293851990 |
| 28 | 5288703013 |
| 29 | 12194473395 |
| 30 | 28108088241 |
[1,1,1,6,12,19,48,147,305,628,1607,3748,8140, 18779,44521,102625,233230,540343,1254459,2877651, 6614799,15288779,35283125,81210949,187173219, 431917054,995565240,2293851990,5288703013, 12194473395,28108088241] |