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| n | a(n) |
|---|---|
| 1 | 0 |
| 2 | 6 |
| 3 | 9 |
| 4 | 14 |
| 5 | 25 |
| 6 | 57 |
| 7 | 196 |
| 8 | 222 |
| 9 | 441 |
| 10 | 851 |
| 11 | 1936 |
| 12 | 3281 |
| 13 | 6084 |
| 14 | 12662 |
| 15 | 24964 |
| 16 | 48830 |
| 17 | 93636 |
| 18 | 188265 |
| 19 | 369664 |
| 20 | 725859 |
| 21 | 1423249 |
| 22 | 2798582 |
| 23 | 5503716 |
| 24 | 10790049 |
| 25 | 21206025 |
| 26 | 41601462 |
| 27 | 81703521 |
| 28 | 160396110 |
| 29 | 314991504 |
| 30 | 618413702 |
| 31 | 1214104336 |
| 32 | 2384319102 |
| 33 | 4681706929 |
| 34 | 9192838950 |
[0,6,9,14,25,57,196,222,441,851,1936,3281,6084, 12662,24964,48830,93636,188265,369664,725859, 1423249,2798582,5503716,10790049,21206025, 41601462,81703521,160396110,314991504,618413702, 1214104336,2384319102,4681706929,9192838950] |