The OEIS is supported by the many generous donors to the OEIS Foundation.
| n | a(n) |
|---|---|
| 1 | 6 |
| 2 | 31 |
| 3 | 112 |
| 4 | 317 |
| 5 | 750 |
| 6 | 1559 |
| 7 | 2944 |
| 8 | 5165 |
| 9 | 8550 |
| 10 | 13503 |
| 11 | 20512 |
| 12 | 30157 |
| 13 | 43118 |
| 14 | 60183 |
| 15 | 82256 |
[6,31,112,317,750,1559,2944,5165,8550,13503,20512, 30157,43118,60183,82256] |