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| n | a(n) |
|---|---|
| 1 | 4 |
| 2 | 17 |
| 3 | 63 |
| 4 | 187 |
| 5 | 468 |
| 6 | 1032 |
| 7 | 2067 |
| 8 | 3840 |
| 9 | 6716 |
| 10 | 11179 |
| 11 | 17855 |
| 12 | 27537 |
| 13 | 41212 |
| 14 | 60090 |
| 15 | 85635 |
| 16 | 119598 |
| 17 | 164052 |
| 18 | 221429 |
| 19 | 294559 |
| 20 | 386711 |
| 21 | 501636 |
| 22 | 643612 |
| 23 | 817491 |
| 24 | 1028748 |
| 25 | 1283532 |
| 26 | 1588719 |
| 27 | 1951967 |
| 28 | 2381773 |
| 29 | 2887532 |
| 30 | 3479598 |
| 31 | 4169347 |
| 32 | 4969242 |
| 33 | 5892900 |
| 34 | 6955161 |
[4,17,63,187,468,1032,2067,3840,6716,11179,17855, 27537,41212,60090,85635,119598,164052,221429, 294559,386711,501636,643612,817491,1028748, 1283532,1588719,1951967,2381773,2887532,3479598, 4169347,4969242,5892900,6955161] |