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| n | a(n) |
|---|---|
| 1 | 6 |
| 2 | 58 |
| 3 | 304 |
| 4 | 1169 |
| 5 | 3571 |
| 6 | 9353 |
| 7 | 21713 |
| 8 | 46037 |
| 9 | 90595 |
| 10 | 167917 |
| 11 | 295811 |
| 12 | 499442 |
| 13 | 812681 |
| 14 | 1281088 |
| 15 | 1963602 |
| 16 | 2936595 |
| 17 | 4295937 |
| 18 | 6162309 |
| 19 | 8683612 |
| 20 | 12041794 |
| 21 | 16455557 |
| 22 | 22188902 |
| 23 | 29554150 |
| 24 | 38922422 |
| 25 | 50726886 |
| 26 | 65475486 |
| 27 | 83754336 |
| 28 | 106242925 |
[6,58,304,1169,3571,9353,21713,46037,90595,167917, 295811,499442,812681,1281088,1963602,2936595, 4295937,6162309,8683612,12041794,16455557, 22188902,29554150,38922422,50726886,65475486, 83754336,106242925] |