The OEIS is supported by the many generous donors to the OEIS Foundation.
| n | a(n) |
|---|---|
| 1 | 0 |
| 2 | 1 |
| 3 | 5 |
| 4 | 17 |
| 5 | 41 |
| 6 | 125 |
| 7 | 161 |
| 8 | 377 |
| 9 | 485 |
| 10 | 881 |
| 11 | 1457 |
| 12 | 2645 |
| 13 | 3077 |
| 14 | 3941 |
| 15 | 5417 |
| 16 | 9197 |
| 17 | 11825 |
| 18 | 14405 |
| 19 | 16757 |
| 20 | 18521 |
| 21 | 24965 |
| 22 | 26405 |
| 23 | 37337 |
| 24 | 39365 |
| 25 | 42461 |
| 26 | 71441 |
| 27 | 77657 |
| 28 | 95921 |
| 29 | 99077 |
| 30 | 113777 |
| 31 | 117305 |
| 32 | 143261 |
| 33 | 174761 |
| 34 | 175445 |
| 35 | 184841 |
| 36 | 265481 |
| 37 | 304037 |
| 38 | 308825 |
| 39 | 318401 |
| 40 | 351917 |
[0,1,5,17,41,125,161,377,485,881,1457,2645,3077, 3941,5417,9197,11825,14405,16757,18521,24965, 26405,37337,39365,42461,71441,77657,95921,99077, 113777,117305,143261,174761,175445,184841,265481, 304037,308825,318401,351917] |