The OEIS is supported by the many generous donors to the OEIS Foundation.
| n | a(n) |
|---|---|
| 1 | 1 |
| 2 | 1 |
| 3 | 2 |
| 4 | 4 |
| 5 | 6 |
| 6 | 14 |
| 7 | 16 |
| 8 | 44 |
| 9 | 64 |
| 10 | 82 |
| 11 | 88 |
| 12 | 322 |
| 13 | 338 |
| 14 | 982 |
| 15 | 1002 |
| 16 | 1006 |
| 17 | 2456 |
| 18 | 6428 |
| 19 | 6766 |
| 20 | 19622 |
| 21 | 19710 |
| 22 | 19728 |
| 23 | 19874 |
| 24 | 98556 |
| 25 | 105322 |
| 26 | 126042 |
| 27 | 126510 |
| 28 | 252610 |
| 29 | 253612 |
| 30 | 1061208 |
| 31 | 1061210 |
| 32 | 3183626 |
| 33 | 4770276 |
| 34 | 4770358 |
| 35 | 4772814 |
| 36 | 4772828 |
| 37 | 5939358 |
| 38 | 31392886 |
[1,1,2,4,6,14,16,44,64,82,88,322,338,982,1002, 1006,2456,6428,6766,19622,19710,19728,19874,98556, 105322,126042,126510,252610,253612,1061208, 1061210,3183626,4770276,4770358,4772814,4772828, 5939358,31392886] |