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| n | a(n) |
|---|---|
| 2 | 1 |
| 3 | 1 |
| 4 | 1 |
| 5 | 4 |
| 6 | 31 |
| 7 | 1 |
| 8 | 13 |
| 9 | 224 |
| 10 | 17 |
| 11 | 151 |
| 12 | 1825 |
| 13 | 404 |
| 14 | 2429 |
| 15 | 7279 |
| 16 | 1079 |
| 17 | 6472 |
| 18 | 23303 |
| 19 | 863 |
| 20 | 155347 |
| 21 | 932060 |
| 22 | 207127 |
| 23 | 621377 |
| 24 | 7456549 |
| 25 | 184112 |
| 26 | 1104673 |
| 27 | 29826157 |
| 28 | 1472897 |
| 29 | 79536428 |
| 30 | 477218599 |
| 31 | 53024287 |
| 32 | 636291455 |
| 33 | 3817748696 |
| 34 | 282796201 |
| 35 | 848388601 |
[1,1,1,4,31,1,13,224,17,151,1825,404,2429,7279, 1079,6472,23303,863,155347,932060,207127,621377, 7456549,184112,1104673,29826157,1472897,79536428, 477218599,53024287,636291455,3817748696,282796201, 848388601] |