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| n | a(n) |
|---|---|
| 0 | 1 |
| 1 | 2 |
| 2 | 3 |
| 3 | 4 |
| 4 | 21 |
| 5 | 9 |
| 6 | 8 |
| 7 | 117 |
| 8 | 135 |
| 9 | 27 |
| 10 | 16 |
| 11 | 609 |
| 12 | 1431 |
| 13 | 702 |
| 14 | 81 |
| 15 | 32 |
| 16 | 3093 |
| 17 | 13275 |
| 18 | 12015 |
| 19 | 3240 |
| 20 | 243 |
| 21 | 64 |
| 22 | 15561 |
| 23 | 115479 |
| 24 | 171990 |
| 25 | 81405 |
| 26 | 13851 |
| 27 | 729 |
| 28 | 128 |
| 29 | 77997 |
| 30 | 970515 |
| 31 | 2238327 |
| 32 | 1655640 |
| 33 | 479682 |
| 34 | 56133 |
| 35 | 2187 |
| 36 | 256 |
| 37 | 390369 |
| 38 | 7998111 |
| 39 | 27533142 |
| 40 | 29893941 |
| 41 | 13121514 |
| 42 | 2561706 |
[1,2,3,4,21,9,8,117,135,27,16,609,1431,702,81,32, 3093,13275,12015,3240,243,64,15561,115479,171990, 81405,13851,729,128,77997,970515,2238327,1655640, 479682,56133,2187,256,390369,7998111,27533142, 29893941,13121514,2561706] |