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| n | a(n) |
|---|---|
| 1 | 12 |
| 2 | 21 |
| 3 | 3 |
| 4 | 1 |
| 5 | 19 |
| 6 | 56 |
| 7 | 100 |
| 8 | 179 |
| 9 | 355 |
| 10 | 709 |
| 11 | 1399 |
| 12 | 2742 |
| 13 | 5384 |
| 14 | 10589 |
| 15 | 20823 |
| 16 | 40937 |
| 17 | 80475 |
| 18 | 158208 |
| 19 | 311032 |
| 20 | 611475 |
| 21 | 1202127 |
| 22 | 2363317 |
| 23 | 4646159 |
| 24 | 9134110 |
| 25 | 17957188 |
| 26 | 35302901 |
| 27 | 69403675 |
| 28 | 136444033 |
| 29 | 268241907 |
| 30 | 527349704 |
| 31 | 1036742220 |
| 32 | 2038181539 |
| 33 | 4006959403 |
| 34 | 7877474773 |
[12,21,3,1,19,56,100,179,355,709,1399,2742,5384, 10589,20823,40937,80475,158208,311032,611475, 1202127,2363317,4646159,9134110,17957188,35302901, 69403675,136444033,268241907,527349704,1036742220, 2038181539,4006959403,7877474773] |