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| n | a(n) |
|---|---|
| 1 | 1 |
| 2 | 3 |
| 3 | 6 |
| 4 | 10 |
| 5 | 20 |
| 6 | 43 |
| 7 | 64 |
| 8 | 114 |
| 9 | 185 |
| 10 | 280 |
| 11 | 402 |
| 12 | 554 |
| 13 | 820 |
| 14 | 11030 |
| 15 | 14640 |
| 16 | 18910 |
| 17 | 24177 |
| 18 | 30439 |
| 19 | 37810 |
| 20 | 88410 |
| 21 | 107416 |
| 22 | 129286 |
| 23 | 154290 |
| 24 | 270000 |
| 25 | 317530 |
| 26 | 371359 |
| 27 | 431306 |
| 28 | 659350 |
| 29 | 758210 |
| 30 | 867695 |
| 31 | 988534 |
| 32 | 1394984 |
| 33 | 1576972 |
| 34 | 1775485 |
| 35 | 2383290 |
| 36 | 2665338 |
| 37 | 3459466 |
| 38 | 3846532 |
[1,3,6,10,20,43,64,114,185,280,402,554,820,11030, 14640,18910,24177,30439,37810,88410,107416,129286, 154290,270000,317530,371359,431306,659350,758210, 867695,988534,1394984,1576972,1775485,2383290, 2665338,3459466,3846532] |