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| n | a(n) |
|---|---|
| 1 | 47 |
| 2 | 4322 |
| 3 | 132214 |
| 4 | 1674043 |
| 5 | 12561823 |
| 6 | 66369488 |
| 7 | 279618492 |
| 8 | 975189851 |
| 9 | 2972844263 |
| 10 | 8086809479 |
| 11 | 20111108169 |
| 12 | 46277171169 |
| 13 | 100029289052 |
| 14 | 204344500677 |
| 15 | 398372414831 |
| 16 | 744412292078 |
| 17 | 1341415693780 |
| 18 | 2338177034539 |
| 19 | 3960008651919 |
[47,4322,132214,1674043,12561823,66369488, 279618492,975189851,2972844263,8086809479, 20111108169,46277171169,100029289052,204344500677, 398372414831,744412292078,1341415693780, 2338177034539,3960008651919] |