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| n | a(n) |
|---|---|
| 1 | 2 |
| 2 | 13 |
| 3 | 50 |
| 4 | 147 |
| 5 | 366 |
| 6 | 810 |
| 7 | 1640 |
| 8 | 3094 |
| 9 | 5510 |
| 10 | 9355 |
| 11 | 15256 |
| 12 | 24037 |
| 13 | 36760 |
| 14 | 54768 |
| 15 | 79732 |
| 16 | 113704 |
| 17 | 159176 |
| 18 | 219141 |
| 19 | 297160 |
| 20 | 397433 |
| 21 | 524872 |
| 22 | 685180 |
| 23 | 884934 |
| 24 | 1131674 |
| 25 | 1434000 |
| 26 | 1801673 |
| 27 | 2245718 |
| 28 | 2778531 |
| 29 | 3413988 |
| 30 | 4167558 |
| 31 | 5056430 |
| 32 | 6099644 |
| 33 | 7318228 |
| 34 | 8735337 |
| 35 | 10376402 |
[2,13,50,147,366,810,1640,3094,5510,9355,15256, 24037,36760,54768,79732,113704,159176,219141, 297160,397433,524872,685180,884934,1131674, 1434000,1801673,2245718,2778531,3413988,4167558, 5056430,6099644,7318228,8735337,10376402] |