The OEIS is supported by the many generous donors to the OEIS Foundation.
| n | a(n) |
|---|---|
| 1 | 0 |
| 2 | 0 |
| 3 | 1 |
| 4 | 5 |
| 5 | 15 |
| 6 | 36 |
| 7 | 71 |
| 8 | 131 |
| 9 | 216 |
| 10 | 346 |
| 11 | 511 |
| 12 | 756 |
| 13 | 1042 |
| 14 | 1441 |
| 15 | 1907 |
| 16 | 2527 |
| 17 | 3207 |
| 18 | 4128 |
| 19 | 5097 |
| 20 | 6371 |
| 21 | 7737 |
| 22 | 9442 |
| 23 | 11213 |
| 24 | 13538 |
| 25 | 15848 |
| 26 | 18734 |
| 27 | 21744 |
| 28 | 25423 |
| 29 | 29077 |
| 30 | 33743 |
| 31 | 38238 |
| 32 | 43818 |
| 33 | 49440 |
| 34 | 56104 |
| 35 | 62694 |
| 36 | 70979 |
| 37 | 78749 |
| 38 | 88154 |
| 39 | 97580 |
| 40 | 108790 |
| 41 | 119450 |
| 42 | 132680 |
| 43 | 145021 |
| 44 | 159974 |
[0,0,1,5,15,36,71,131,216,346,511,756,1042,1441, 1907,2527,3207,4128,5097,6371,7737,9442,11213, 13538,15848,18734,21744,25423,29077,33743,38238, 43818,49440,56104,62694,70979,78749,88154,97580, 108790,119450,132680,145021,159974] |