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| n | a(n) |
|---|---|
| 0 | 1 |
| 1 | 10 |
| 2 | 111 |
| 3 | 1352 |
| 4 | 17909 |
| 5 | 256134 |
| 6 | 3931555 |
| 7 | 64441684 |
| 8 | 1123029513 |
| 9 | 20730064706 |
| 10 | 403978495031 |
| 11 | 8286870547680 |
| 12 | 178468044946621 |
| 13 | 4025739435397822 |
| 14 | 94912091598455979 |
| 15 | 2334250550458513004 |
| 16 | 59779945135439664785 |
| 17 | 1591626582328767492474 |
| 18 | 43990176790179196598143 |
| 19 | 1260374228606935319612536 |
[1,10,111,1352,17909,256134,3931555,64441684, 1123029513,20730064706,403978495031,8286870547680, 178468044946621,4025739435397822, 94912091598455979,2334250550458513004, 59779945135439664785,1591626582328767492474, 43990176790179196598143,1260374228606935319612536] |