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| n | a(n) |
|---|---|
| 0 | 1 |
| 1 | 2 |
| 2 | 7 |
| 3 | 29 |
| 4 | 125 |
| 5 | 562 |
| 6 | 2597 |
| 7 | 12210 |
| 8 | 58097 |
| 9 | 279086 |
| 10 | 1350199 |
| 11 | 6567293 |
| 12 | 32080325 |
| 13 | 157251140 |
| 14 | 772958093 |
| 15 | 3808104405 |
| 16 | 18796934995 |
| 17 | 92929725778 |
| 18 | 460047738803 |
| 19 | 2280054707147 |
| 20 | 11311248677395 |
| 21 | 56161619393806 |
| 22 | 279051051744105 |
| 23 | 1387400623154992 |
| 24 | 6901759158188955 |
| 25 | 34350115522554034 |
| 26 | 171033917741551369 |
[1,2,7,29,125,562,2597,12210,58097,279086,1350199, 6567293,32080325,157251140,772958093,3808104405, 18796934995,92929725778,460047738803, 2280054707147,11311248677395,56161619393806, 279051051744105,1387400623154992,6901759158188955, 34350115522554034,171033917741551369] |