The OEIS is supported by the many generous donors to the OEIS Foundation.
| n | a(n) |
|---|---|
| 0 | 1 |
| 1 | 1 |
| 2 | 3 |
| 3 | 4 |
| 4 | 11 |
| 5 | 16 |
| 6 | 30 |
| 7 | 50 |
| 8 | 115 |
| 9 | 157 |
| 10 | 338 |
| 11 | 507 |
| 12 | 1094 |
| 13 | 1587 |
| 14 | 3538 |
| 15 | 4594 |
| 16 | 11379 |
| 17 | 14842 |
| 18 | 33717 |
| 19 | 44879 |
| 20 | 108346 |
| 21 | 129119 |
| 22 | 328353 |
| 23 | 401029 |
| 24 | 990670 |
| 25 | 1176391 |
| 26 | 3021359 |
| 27 | 3366733 |
| 28 | 9202918 |
| 29 | 10146579 |
| 30 | 26569610 |
| 31 | 29412429 |
| 32 | 82152435 |
| 33 | 83243894 |
| 34 | 250231696 |
| 35 | 288536609 |
| 36 | 866141480 |
[1,1,3,4,11,16,30,50,115,157,338,507,1094,1587, 3538,4594,11379,14842,33717,44879,108346,129119, 328353,401029,990670,1176391,3021359,3366733, 9202918,10146579,26569610,29412429,82152435, 83243894,250231696,288536609,866141480] |