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| n | a(n) |
|---|---|
| 1 | 1 |
| 2 | 6 |
| 3 | 19 |
| 4 | 46 |
| 5 | 94 |
| 6 | 172 |
| 7 | 290 |
| 8 | 460 |
| 9 | 695 |
| 10 | 1010 |
| 11 | 1421 |
| 12 | 1946 |
| 13 | 2604 |
| 14 | 3416 |
| 15 | 4404 |
| 16 | 5592 |
| 17 | 7005 |
| 18 | 8670 |
| 19 | 10615 |
| 20 | 12870 |
| 21 | 15466 |
| 22 | 18436 |
| 23 | 21814 |
| 24 | 25636 |
| 25 | 29939 |
| 26 | 34762 |
| 27 | 40145 |
| 28 | 46130 |
| 29 | 52760 |
| 30 | 60080 |
| 31 | 68136 |
| 32 | 76976 |
| 33 | 86649 |
| 34 | 97206 |
| 35 | 108699 |
| 36 | 121182 |
| 37 | 134710 |
| 38 | 149340 |
[1,6,19,46,94,172,290,460,695,1010,1421,1946,2604, 3416,4404,5592,7005,8670,10615,12870,15466,18436, 21814,25636,29939,34762,40145,46130,52760,60080, 68136,76976,86649,97206,108699,121182,134710, 149340] |