The OEIS is supported by the many generous donors to the OEIS Foundation.
| n | a(n) |
|---|---|
| 1 | 1 |
| 2 | 3 |
| 3 | 8 |
| 4 | 19 |
| 5 | 44 |
| 6 | 99 |
| 7 | 218 |
| 8 | 473 |
| 9 | 1012 |
| 10 | 2144 |
| 11 | 4504 |
| 12 | 9395 |
| 13 | 19482 |
| 14 | 40189 |
| 15 | 82534 |
| 16 | 168829 |
| 17 | 344145 |
| 18 | 699334 |
| 19 | 1417146 |
| 20 | 2864510 |
| 21 | 5776889 |
| 22 | 11626101 |
| 23 | 23353272 |
| 24 | 46827677 |
| 25 | 93747221 |
| 26 | 187399328 |
| 27 | 374092162 |
| 28 | 745817021 |
| 29 | 1485138398 |
| 30 | 2954041789 |
| 31 | 5869650947 |
| 32 | 11651500427 |
| 33 | 23107388495 |
| 34 | 45787040997 |
| 35 | 90652188078 |
| 36 | 179340159228 |
[1,3,8,19,44,99,218,473,1012,2144,4504,9395,19482, 40189,82534,168829,344145,699334,1417146,2864510, 5776889,11626101,23353272,46827677,93747221, 187399328,374092162,745817021,1485138398, 2954041789,5869650947,11651500427,23107388495, 45787040997,90652188078,179340159228] |