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| n | a(n) |
|---|---|
| 1 | 1 |
| 2 | 5 |
| 3 | 18 |
| 4 | 65 |
| 5 | 167 |
| 6 | 410 |
| 7 | 819 |
| 8 | 1516 |
| 9 | 3278 |
| 10 | 5370 |
| 11 | 9033 |
| 12 | 15333 |
| 13 | 22188 |
| 14 | 31688 |
| 15 | 55054 |
| 16 | 67901 |
| 17 | 96992 |
| 18 | 147435 |
| 19 | 184996 |
| 20 | 238461 |
| 21 | 357370 |
| 22 | 415171 |
| 23 | 542970 |
| 24 | 750963 |
| 25 | 877365 |
| 26 | 1067583 |
| 27 | 1516301 |
| 28 | 1638832 |
| 29 | 2032842 |
| 30 | 2752685 |
| 31 | 3012300 |
| 32 | 3525544 |
| 33 | 4790656 |
| 34 | 5068331 |
| 35 | 6072275 |
[1,5,18,65,167,410,819,1516,3278,5370,9033,15333, 22188,31688,55054,67901,96992,147435,184996, 238461,357370,415171,542970,750963,877365,1067583, 1516301,1638832,2032842,2752685,3012300,3525544, 4790656,5068331,6072275] |