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| n | a(n) |
|---|---|
| 3 | 1 |
| 4 | 7 |
| 5 | 27 |
| 6 | 77 |
| 7 | 181 |
| 8 | 378 |
| 9 | 707 |
| 10 | 1254 |
| 11 | 2052 |
| 12 | 3290 |
| 13 | 4928 |
| 14 | 7371 |
| 15 | 10381 |
| 16 | 14756 |
| 17 | 19818 |
| 18 | 27158 |
| 19 | 35139 |
| 20 | 46683 |
| 21 | 58806 |
| 22 | 76146 |
| 23 | 93555 |
| 24 | 119092 |
| 25 | 143222 |
| 26 | 178983 |
| 27 | 212408 |
| 28 | 261261 |
| 29 | 305046 |
| 30 | 371931 |
| 31 | 428156 |
| 32 | 515592 |
| 33 | 589385 |
| 34 | 701442 |
| 35 | 792720 |
| 36 | 939918 |
| 37 | 1050567 |
| 38 | 1233387 |
| 39 | 1374835 |
| 40 | 1600143 |
| 41 | 1766583 |
| 42 | 2052898 |
| 43 | 2247784 |
[1,7,27,77,181,378,707,1254,2052,3290,4928,7371, 10381,14756,19818,27158,35139,46683,58806,76146, 93555,119092,143222,178983,212408,261261,305046, 371931,428156,515592,589385,701442,792720,939918, 1050567,1233387,1374835,1600143,1766583,2052898, 2247784] |