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Reminder: The OEIS is hiring a new managing editor, and the application deadline is January 26.
| n | a(n) |
|---|---|
| 1 | 1 |
| 2 | 1 |
| 3 | 3 |
| 4 | 5 |
| 5 | 9 |
| 6 | 19 |
| 7 | 71 |
| 8 | 265 |
| 9 | 1031 |
| 10 | 4533 |
| 11 | 26975 |
| 12 | 188011 |
| 13 | 1487007 |
| 14 | 13567107 |
| 15 | 149156483 |
| 16 | 1938922129 |
| 17 | 29541083501 |
| 18 | 528608677059 |
| 19 | 11174794559755 |
| 20 | 278126836279869 |
| 21 | 8142808516685673 |
| 22 | 280747197308433325 |
| 23 | 11410125160644854247 |
[1,1,3,5,9,19,71,265,1031,4533,26975,188011, 1487007,13567107,149156483,1938922129,29541083501, 528608677059,11174794559755,278126836279869, 8142808516685673,280747197308433325, 11410125160644854247] |