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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 | 3 |
| 4 | 5 |
| 5 | 15 |
| 6 | 31 |
| 7 | 93 |
| 8 | 215 |
| 9 | 653 |
| 10 | 1619 |
| 11 | 4979 |
| 12 | 12949 |
| 13 | 40293 |
| 14 | 108517 |
| 15 | 341241 |
| 16 | 943937 |
| 17 | 2996127 |
| 18 | 8465319 |
| 19 | 27092419 |
| 20 | 77878271 |
| 21 | 251073791 |
| 22 | 732129719 |
| 23 | 2375764351 |
| 24 | 7012025277 |
| 25 | 22886955207 |
| 26 | 68254122669 |
| 27 | 223946197065 |
| 28 | 673885100857 |
| 29 | 2221505541773 |
| 30 | 6737598265009 |
[1,1,1,3,5,15,31,93,215,653,1619,4979,12949,40293, 108517,341241,943937,2996127,8465319,27092419, 77878271,251073791,732129719,2375764351, 7012025277,22886955207,68254122669,223946197065, 673885100857,2221505541773,6737598265009] |