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| n | a(n) |
|---|---|
| 1 | 2 |
| 2 | 100 |
| 3 | 726 |
| 4 | 2696 |
| 5 | 7210 |
| 6 | 15852 |
| 7 | 30590 |
| 8 | 53776 |
| 9 | 88146 |
| 10 | 136820 |
| 11 | 203302 |
| 12 | 291480 |
| 13 | 405626 |
| 14 | 550396 |
| 15 | 730830 |
| 16 | 952352 |
| 17 | 1220770 |
| 18 | 1542276 |
| 19 | 1923446 |
| 20 | 2371240 |
| 21 | 2893002 |
| 22 | 3496460 |
| 23 | 4189726 |
| 24 | 4981296 |
| 25 | 5880050 |
| 26 | 6895252 |
| 27 | 8036550 |
| 28 | 9313976 |
| 29 | 10737946 |
| 30 | 12319260 |
| 31 | 14069102 |
| 32 | 15999040 |
| 33 | 18121026 |
[2,100,726,2696,7210,15852,30590,53776,88146, 136820,203302,291480,405626,550396,730830,952352, 1220770,1542276,1923446,2371240,2893002,3496460, 4189726,4981296,5880050,6895252,8036550,9313976, 10737946,12319260,14069102,15999040,18121026] |