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| n | a(n) |
|---|---|
| 1 | 1 |
| 2 | 1 |
| 3 | 7 |
| 4 | 7 |
| 5 | 1 |
| 6 | 19 |
| 7 | 55 |
| 8 | 1 |
| 9 | 259 |
| 10 | 613 |
| 11 | 1 |
| 12 | 3571 |
| 13 | 8881 |
| 14 | 1 |
| 15 | 55765 |
| 16 | 142369 |
| 17 | 1 |
| 18 | 947947 |
| 19 | 2468845 |
| 20 | 1 |
| 21 | 17099809 |
| 22 | 45375499 |
| 23 | 1 |
| 24 | 323927185 |
| 25 | 871038571 |
| 26 | 1 |
| 27 | 6369199909 |
| 28 | 17312303761 |
| 29 | 1 |
| 30 | 129094833121 |
| 31 | 354018140455 |
| 32 | 1 |
| 33 | 2682854657047 |
| 34 | 7411871621617 |
| 35 | 1 |
[1,1,7,7,1,19,55,1,259,613,1,3571,8881,1,55765, 142369,1,947947,2468845,1,17099809,45375499,1, 323927185,871038571,1,6369199909,17312303761,1, 129094833121,354018140455,1,2682854657047, 7411871621617,1] |