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| n | a(n) |
|---|---|
| 1 | 1 |
| 2 | 31 |
| 3 | 243 |
| 4 | 992 |
| 5 | 3094 |
| 6 | 7564 |
| 7 | 16596 |
| 8 | 31744 |
| 9 | 58237 |
| 10 | 97117 |
| 11 | 158169 |
| 12 | 241837 |
| 13 | 364299 |
| 14 | 521829 |
| 15 | 745693 |
| 16 | 1018120 |
| 17 | 1389402 |
| 18 | 1837302 |
| 19 | 2423834 |
| 20 | 3105432 |
| 21 | 3998776 |
| 22 | 5007286 |
| 23 | 6289998 |
| 24 | 7738784 |
| 25 | 9543887 |
| 26 | 11537207 |
| 27 | 14031231 |
| 28 | 16717879 |
| 29 | 20018661 |
| 30 | 23629281 |
| 31 | 27958433 |
| 32 | 32577739 |
| 33 | 38219963 |
| 34 | 44148743 |
[1,31,243,992,3094,7564,16596,31744,58237,97117, 158169,241837,364299,521829,745693,1018120, 1389402,1837302,2423834,3105432,3998776,5007286, 6289998,7738784,9543887,11537207,14031231, 16717879,20018661,23629281,27958433,32577739, 38219963,44148743] |