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| n | a(n) |
|---|---|
| 1 | 2 |
| 2 | 6 |
| 3 | 14 |
| 4 | 29 |
| 5 | 56 |
| 6 | 101 |
| 7 | 166 |
| 8 | 267 |
| 9 | 407 |
| 10 | 604 |
| 11 | 865 |
| 12 | 1211 |
| 13 | 1659 |
| 14 | 2236 |
| 15 | 2956 |
| 16 | 3861 |
| 17 | 4949 |
| 18 | 6299 |
| 19 | 7906 |
| 20 | 9849 |
| 21 | 12120 |
| 22 | 14817 |
| 23 | 17958 |
| 24 | 21641 |
| 25 | 25859 |
| 26 | 30753 |
| 27 | 36318 |
| 28 | 42732 |
| 29 | 49917 |
| 30 | 58116 |
| 31 | 67296 |
| 32 | 77693 |
| 33 | 89219 |
| 34 | 102175 |
| 35 | 116527 |
| 36 | 132515 |
| 37 | 150117 |
| 38 | 169602 |
| 39 | 191013 |
| 40 | 214662 |
[2,6,14,29,56,101,166,267,407,604,865,1211,1659, 2236,2956,3861,4949,6299,7906,9849,12120,14817, 17958,21641,25859,30753,36318,42732,49917,58116, 67296,77693,89219,102175,116527,132515,150117, 169602,191013,214662] |