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| n | a(n) |
|---|---|
| 0 | 1 |
| 1 | 2 |
| 2 | 3 |
| 3 | 29 |
| 4 | 32 |
| 5 | 221 |
| 6 | 253 |
| 7 | 474 |
| 8 | 727 |
| 9 | 1201 |
| 10 | 1928 |
| 11 | 5057 |
| 12 | 6985 |
| 13 | 60937 |
| 14 | 1042914 |
| 15 | 2146765 |
| 16 | 9629974 |
| 17 | 31036687 |
| 18 | 102740035 |
| 19 | 236516757 |
| 20 | 1048807063 |
| 21 | 1285323820 |
| 22 | 7475426163 |
| 23 | 195646404058 |
| 24 | 985707446453 |
| 25 | 1181353850511 |
| 26 | 5711122848497 |
| 27 | 12603599547505 |
| 28 | 43521921491012 |
[1,2,3,29,32,221,253,474,727,1201,1928,5057,6985, 60937,1042914,2146765,9629974,31036687,102740035, 236516757,1048807063,1285323820,7475426163, 195646404058,985707446453,1181353850511, 5711122848497,12603599547505,43521921491012] |