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| n | a(n) |
|---|---|
| 1 | 83224 |
| 2 | 117488 |
| 3 | 173440 |
| 4 | 306532 |
| 5 | 556560 |
| 6 | 1160340 |
| 7 | 2420288 |
| 8 | 5516124 |
| 9 | 12489280 |
| 10 | 29986228 |
| 11 | 71750944 |
| 12 | 179330796 |
| 13 | 449031120 |
| 14 | 1166157172 |
| 15 | 3047852144 |
| 16 | 8233837692 |
| 17 | 22446543984 |
| 18 | 63085200868 |
| 19 | 178987944256 |
| 20 | 521842413052 |
| 21 | 1533372749568 |
[83224,117488,173440,306532,556560,1160340, 2420288,5516124,12489280,29986228,71750944, 179330796,449031120,1166157172,3047852144, 8233837692,22446543984,63085200868,178987944256, 521842413052,1533372749568] |