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| n | a(n) |
|---|---|
| 1 | 1 |
| 2 | 10 |
| 3 | 95 |
| 4 | 299 |
| 5 | 1200 |
| 6 | 5766 |
| 7 | 39682 |
| 8 | 280496 |
| 9 | 1820644 |
| 10 | 10879878 |
| 11 | 62550967 |
| 12 | 357472789 |
| 13 | 2055055682 |
| 14 | 11843175126 |
| 15 | 67976484294 |
| 16 | 387491768734 |
| 17 | 2195341970660 |
| 18 | 12383555646056 |
| 19 | 69627977136961 |
| 20 | 390355048862761 |
| 21 | 2182125328996962 |
| 22 | 12163963999818632 |
| 23 | 67628630183657612 |
| 24 | 375099014145565218 |
[1,10,95,299,1200,5766,39682,280496,1820644, 10879878,62550967,357472789,2055055682, 11843175126,67976484294,387491768734, 2195341970660,12383555646056,69627977136961, 390355048862761,2182125328996962, 12163963999818632,67628630183657612, 375099014145565218] |