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| n | a(n) |
|---|---|
| 1 | 8 |
| 2 | 31 |
| 3 | 40 |
| 4 | 98 |
| 5 | 277 |
| 6 | 577 |
| 7 | 1245 |
| 8 | 2868 |
| 9 | 6381 |
| 10 | 14206 |
| 11 | 31630 |
| 12 | 70391 |
| 13 | 157783 |
| 14 | 351429 |
| 15 | 782244 |
| 16 | 1750653 |
| 17 | 3907576 |
| 18 | 8711942 |
| 19 | 19467545 |
| 20 | 43480329 |
| 21 | 97049939 |
| 22 | 216757294 |
| 23 | 484138155 |
| 24 | 1081129678 |
| 25 | 2414527058 |
| 26 | 5392770159 |
| 27 | 12044266507 |
| 28 | 26899761193 |
[8,31,40,98,277,577,1245,2868,6381,14206,31630, 70391,157783,351429,782244,1750653,3907576, 8711942,19467545,43480329,97049939,216757294, 484138155,1081129678,2414527058,5392770159, 12044266507,26899761193] |