The OEIS is supported by the many generous donors to the OEIS Foundation.
| n | a(n) |
|---|---|
| 3 | 2 |
| 4 | 14 |
| 5 | 63 |
| 6 | 209 |
| 7 | 559 |
| 8 | 1281 |
| 9 | 2618 |
| 10 | 4902 |
| 11 | 8568 |
| 12 | 14168 |
| 13 | 22385 |
| 14 | 34047 |
| 15 | 50141 |
| 16 | 71827 |
| 17 | 100452 |
| 18 | 137564 |
| 19 | 184926 |
| 20 | 244530 |
| 21 | 318611 |
| 22 | 409661 |
| 23 | 520443 |
| 24 | 654005 |
| 25 | 813694 |
| 26 | 1003170 |
| 27 | 1226420 |
| 28 | 1487772 |
| 29 | 1791909 |
| 30 | 2143883 |
| 31 | 2549129 |
| 32 | 3013479 |
| 33 | 3543176 |
[2,14,63,209,559,1281,2618,4902,8568,14168,22385, 34047,50141,71827,100452,137564,184926,244530, 318611,409661,520443,654005,813694,1003170, 1226420,1487772,1791909,2143883,2549129,3013479, 3543176] |