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| n | a(n) |
|---|---|
| 1 | 1 |
| 2 | 2 |
| 3 | 5 |
| 4 | 36 |
| 5 | 54 |
| 6 | 441 |
| 7 | 473 |
| 8 | 6525 |
| 9 | 52577 |
| 10 | 124025 |
| 11 | 683820 |
| 12 | 1513754 |
| 13 | 1920552 |
| 14 | 6079931 |
| 15 | 6762923 |
| 16 | 14751657 |
| 17 | 17052782 |
| 18 | 17310942 |
| 19 | 36543714 |
| 20 | 49919939 |
| 21 | 60260967 |
| 22 | 251849052 |
| 23 | 364535720 |
| 24 | 372476909 |
| 25 | 562047389 |
| 26 | 670395564 |
| 27 | 670440852 |
| 28 | 783856979 |
| 29 | 824626800 |
| 30 | 1084201689 |
| 31 | 1122603809 |
[1,2,5,36,54,441,473,6525,52577,124025,683820, 1513754,1920552,6079931,6762923,14751657,17052782, 17310942,36543714,49919939,60260967,251849052, 364535720,372476909,562047389,670395564,670440852, 783856979,824626800,1084201689,1122603809] |