The OEIS is supported by the many generous donors to the OEIS Foundation.
| n | a(n) |
|---|---|
| 0 | 1 |
| 1 | 2 |
| 2 | 2 |
| 3 | 4 |
| 4 | 8 |
| 5 | 32 |
| 6 | 256 |
| 7 | 8192 |
| 8 | 209715 |
| 9 | 1798520 |
| 10 | 3716280 |
| 11 | 683095 |
| 12 | 2538760 |
| 13 | 1734260 |
| 14 | 40286917 |
| 15 | 6987420 |
| 16 | 28150694 |
| 17 | 19670248 |
| 18 | 53712 |
| 19 | 10562837 |
| 20 | 56731094 |
| 21 | 592418736 |
| 22 | 3608529714 |
| 23 | 2137609854 |
| 24 | 713628509 |
| 25 | 152493768 |
| 26 | 1082396 |
| 27 | 1650842 |
| 28 | 1786432 |
| 29 | 2941675 |
| 30 | 521036 |
| 31 | 1532780 |
| 32 | 7986350 |
| 33 | 1243750 |
| 34 | 9302815 |
[1,2,2,4,8,32,256,8192,209715,1798520,3716280, 683095,2538760,1734260,40286917,6987420,28150694, 19670248,53712,10562837,56731094,592418736, 3608529714,2137609854,713628509,152493768,1082396, 1650842,1786432,2941675,521036,1532780,7986350, 1243750,9302815] |