The OEIS is supported by the many generous donors to the OEIS Foundation.
| n | a(n) |
|---|---|
| 10 | 0 |
| 11 | 2 |
| 12 | 17 |
| 13 | 72 |
| 14 | 236 |
| 15 | 629 |
| 16 | 1595 |
| 17 | 3997 |
| 18 | 9471 |
| 19 | 20149 |
| 20 | 38930 |
| 21 | 70447 |
| 22 | 123090 |
| 23 | 210770 |
| 24 | 355651 |
| 25 | 590703 |
| 26 | 964039 |
| 27 | 1543512 |
| 28 | 2423915 |
| 29 | 3732549 |
| 30 | 5636518 |
| 31 | 8348518 |
| 32 | 12139004 |
| 33 | 17351874 |
| 34 | 24431558 |
| 35 | 33952483 |
| 36 | 46660067 |
| 37 | 63511160 |
| 38 | 85724877 |
| 39 | 114828861 |
| 40 | 152714868 |
| 41 | 201683593 |
| 42 | 264500182 |
[0,2,17,72,236,629,1595,3997,9471,20149,38930, 70447,123090,210770,355651,590703,964039,1543512, 2423915,3732549,5636518,8348518,12139004,17351874, 24431558,33952483,46660067,63511160,85724877, 114828861,152714868,201683593,264500182] |