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| n | a(n) |
|---|---|
| 0 | 1 |
| 1 | 16 |
| 2 | 81 |
| 3 | 266 |
| 4 | 686 |
| 5 | 1512 |
| 6 | 2982 |
| 7 | 5412 |
| 8 | 9207 |
| 9 | 14872 |
| 10 | 23023 |
| 11 | 34398 |
| 12 | 49868 |
| 13 | 70448 |
| 14 | 97308 |
| 15 | 131784 |
| 16 | 175389 |
| 17 | 229824 |
| 18 | 296989 |
| 19 | 378994 |
| 20 | 478170 |
| 21 | 597080 |
| 22 | 738530 |
| 23 | 905580 |
| 24 | 1101555 |
| 25 | 1330056 |
| 26 | 1594971 |
| 27 | 1900486 |
| 28 | 2251096 |
| 29 | 2651616 |
| 30 | 3107192 |
| 31 | 3623312 |
[1,16,81,266,686,1512,2982,5412,9207,14872,23023, 34398,49868,70448,97308,131784,175389,229824, 296989,378994,478170,597080,738530,905580,1101555, 1330056,1594971,1900486,2251096,2651616,3107192, 3623312] |