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| n | a(n) |
|---|---|
| 0 | 0 |
| 1 | 1 |
| 2 | 17 |
| 3 | 123 |
| 4 | 514 |
| 5 | 1565 |
| 6 | 3891 |
| 7 | 8407 |
| 8 | 16388 |
| 9 | 29529 |
| 10 | 50005 |
| 11 | 80531 |
| 12 | 124422 |
| 13 | 185653 |
| 14 | 268919 |
| 15 | 379695 |
| 16 | 524296 |
| 17 | 709937 |
| 18 | 944793 |
| 19 | 1238059 |
| 20 | 1600010 |
| 21 | 2042061 |
| 22 | 2576827 |
| 23 | 3218183 |
| 24 | 3981324 |
| 25 | 4882825 |
| 26 | 5940701 |
| 27 | 7174467 |
| 28 | 8605198 |
| 29 | 10255589 |
| 30 | 12150015 |
[0,1,17,123,514,1565,3891,8407,16388,29529,50005, 80531,124422,185653,268919,379695,524296,709937, 944793,1238059,1600010,2042061,2576827,3218183, 3981324,4882825,5940701,7174467,8605198,10255589, 12150015] |