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| n | a(n) |
|---|---|
| 0 | 1 |
| 1 | 6 |
| 2 | 15 |
| 3 | 48 |
| 4 | 73 |
| 5 | 158 |
| 6 | 207 |
| 7 | 368 |
| 8 | 449 |
| 9 | 710 |
| 10 | 831 |
| 11 | 1216 |
| 12 | 1385 |
| 13 | 1918 |
| 14 | 2143 |
| 15 | 2848 |
| 16 | 3137 |
| 17 | 4038 |
| 18 | 4399 |
| 19 | 5520 |
| 20 | 5961 |
| 21 | 7326 |
| 22 | 7855 |
| 23 | 9488 |
| 24 | 10113 |
| 25 | 12038 |
| 26 | 12767 |
| 27 | 15008 |
| 28 | 15849 |
| 29 | 18430 |
| 30 | 19391 |
| 31 | 22336 |
| 32 | 23425 |
| 33 | 26758 |
| 34 | 27983 |
| 35 | 31728 |
| 36 | 33097 |
| 37 | 37278 |
| 38 | 38799 |
| 39 | 43440 |
| 40 | 45121 |
| 41 | 50246 |
| 42 | 52095 |
[1,6,15,48,73,158,207,368,449,710,831,1216,1385, 1918,2143,2848,3137,4038,4399,5520,5961,7326,7855, 9488,10113,12038,12767,15008,15849,18430,19391, 22336,23425,26758,27983,31728,33097,37278,38799, 43440,45121,50246,52095] |