The OEIS is supported by the many generous donors to the OEIS Foundation.
| n | a(n) |
|---|---|
| 1 | 2 |
| 2 | 15 |
| 3 | 52 |
| 4 | 101 |
| 5 | 198 |
| 6 | 331 |
| 7 | 512 |
| 8 | 753 |
| 9 | 1066 |
| 10 | 1439 |
| 11 | 1908 |
| 12 | 2461 |
| 13 | 3110 |
| 14 | 3867 |
| 15 | 4744 |
| 16 | 5729 |
| 17 | 6858 |
| 18 | 8119 |
| 19 | 9524 |
| 20 | 11085 |
| 21 | 12814 |
| 22 | 14699 |
| 23 | 16776 |
| 24 | 19033 |
| 25 | 21482 |
| 26 | 24135 |
| 27 | 27004 |
| 28 | 30077 |
| 29 | 33390 |
| 30 | 36931 |
| 31 | 40712 |
| 32 | 44745 |
| 33 | 49042 |
| 34 | 53591 |
| 35 | 58428 |
| 36 | 63541 |
| 37 | 68942 |
| 38 | 74643 |
| 39 | 80656 |
| 40 | 86969 |
[2,15,52,101,198,331,512,753,1066,1439,1908,2461, 3110,3867,4744,5729,6858,8119,9524,11085,12814, 14699,16776,19033,21482,24135,27004,30077,33390, 36931,40712,44745,49042,53591,58428,63541,68942, 74643,80656,86969] |