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| n | a(n) |
|---|---|
| 1 | 1 |
| 2 | 7 |
| 3 | 36 |
| 4 | 119 |
| 5 | 356 |
| 6 | 962 |
| 7 | 2108 |
| 8 | 3719 |
| 9 | 6688 |
| 10 | 13801 |
| 11 | 22721 |
| 12 | 31805 |
| 13 | 53339 |
| 14 | 85156 |
| 15 | 116609 |
| 16 | 170040 |
| 17 | 238737 |
| 18 | 320840 |
| 19 | 472344 |
| 20 | 605257 |
| 21 | 737793 |
| 22 | 1090166 |
| 23 | 1402987 |
| 24 | 1569629 |
| 25 | 2180697 |
| 26 | 2805865 |
| 27 | 3201284 |
| 28 | 4201109 |
| 29 | 5157244 |
| 30 | 5875951 |
| 31 | 7814021 |
| 32 | 9055272 |
| 33 | 9955491 |
[1,7,36,119,356,962,2108,3719,6688,13801,22721, 31805,53339,85156,116609,170040,238737,320840, 472344,605257,737793,1090166,1402987,1569629, 2180697,2805865,3201284,4201109,5157244,5875951, 7814021,9055272,9955491] |