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| n | a(n) |
|---|---|
| 1 | 1 |
| 2 | 3 |
| 3 | 11 |
| 4 | 25 |
| 5 | 123 |
| 6 | 53 |
| 7 | 275 |
| 8 | 581 |
| 9 | 5898 |
| 10 | 6337 |
| 11 | 81839 |
| 12 | 52193 |
| 13 | 794409 |
| 14 | 929481 |
| 15 | 611743 |
| 16 | 1609819 |
| 17 | 24076913 |
| 18 | 6686545 |
| 19 | 176364550 |
| 20 | 32690593 |
| 21 | 9049485 |
| 22 | 10684919 |
| 23 | 281305624 |
| 24 | 439838742 |
| 25 | 20192641459 |
| 26 | 17176118816 |
| 27 | 107883019372 |
| 28 | 142161870055 |
| 29 | 2874353551691 |
| 30 | 3214687921599 |
[1,3,11,25,123,53,275,581,5898,6337,81839,52193, 794409,929481,611743,1609819,24076913,6686545, 176364550,32690593,9049485,10684919,281305624, 439838742,20192641459,17176118816,107883019372, 142161870055,2874353551691,3214687921599] |