The OEIS is supported by the many generous donors to the OEIS Foundation.
| n | a(n) |
|---|---|
| 1 | 1 |
| 2 | 12 |
| 3 | 53 |
| 4 | 155 |
| 5 | 360 |
| 6 | 721 |
| 7 | 1302 |
| 8 | 2178 |
| 9 | 3435 |
| 10 | 5170 |
| 11 | 7491 |
| 12 | 10517 |
| 13 | 14378 |
| 14 | 19215 |
| 15 | 25180 |
| 16 | 32436 |
| 17 | 41157 |
| 18 | 51528 |
| 19 | 63745 |
| 20 | 78015 |
| 21 | 94556 |
| 22 | 113597 |
| 23 | 135378 |
| 24 | 160150 |
| 25 | 188175 |
| 26 | 219726 |
| 27 | 255087 |
| 28 | 294553 |
| 29 | 338430 |
| 30 | 387035 |
| 31 | 440696 |
| 32 | 499752 |
| 33 | 564553 |
| 34 | 635460 |
[1,12,53,155,360,721,1302,2178,3435,5170,7491, 10517,14378,19215,25180,32436,41157,51528,63745, 78015,94556,113597,135378,160150,188175,219726, 255087,294553,338430,387035,440696,499752,564553, 635460] |