The OEIS is supported by the many generous donors to the OEIS Foundation.
| n | a(n) |
|---|---|
| 1 | 1 |
| 2 | 12 |
| 3 | 102 |
| 4 | 396 |
| 5 | 1198 |
| 6 | 2748 |
| 7 | 5539 |
| 8 | 10272 |
| 9 | 16986 |
| 10 | 26934 |
| 11 | 41179 |
| 12 | 60804 |
| 13 | 84769 |
| 14 | 119022 |
| 15 | 157947 |
| 16 | 206352 |
| 17 | 268030 |
| 18 | 347430 |
| 19 | 432820 |
| 20 | 543210 |
| 21 | 659238 |
| 22 | 801804 |
| 23 | 970429 |
| 24 | 1171662 |
| 25 | 1371040 |
| 26 | 1627398 |
| 27 | 1904550 |
| 28 | 2213712 |
| 29 | 2555320 |
| 30 | 2971260 |
| 31 | 3373399 |
| 32 | 3881838 |
| 33 | 4399329 |
| 34 | 4988502 |
| 35 | 5610543 |
| 36 | 6315312 |
[1,12,102,396,1198,2748,5539,10272,16986,26934, 41179,60804,84769,119022,157947,206352,268030, 347430,432820,543210,659238,801804,970429,1171662, 1371040,1627398,1904550,2213712,2555320,2971260, 3373399,3881838,4399329,4988502,5610543,6315312] |