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| n | a(n) |
|---|---|
| 0 | 1 |
| 1 | 1 |
| 2 | 2 |
| 3 | 11 |
| 4 | 13 |
| 5 | 24 |
| 6 | 37 |
| 7 | 209 |
| 8 | 246 |
| 9 | 455 |
| 10 | 19356 |
| 11 | 19811 |
| 12 | 39167 |
| 13 | 215646 |
| 14 | 254813 |
| 15 | 470459 |
| 16 | 725272 |
| 17 | 4096819 |
| 18 | 4822091 |
| 19 | 8918910 |
| 20 | 379416311 |
| 21 | 388335221 |
| 22 | 767751532 |
| 23 | 4227092881 |
| 24 | 4994844413 |
| 25 | 9221937294 |
| 26 | 14216781707 |
| 27 | 80305845829 |
| 28 | 94522627536 |
| 29 | 174828473365 |
| 30 | 7437318508866 |
[1,1,2,11,13,24,37,209,246,455,19356,19811,39167, 215646,254813,470459,725272,4096819,4822091, 8918910,379416311,388335221,767751532,4227092881, 4994844413,9221937294,14216781707,80305845829, 94522627536,174828473365,7437318508866] |