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| n | a(n) |
|---|---|
| 1 | 153 |
| 2 | 206 |
| 3 | 292 |
| 4 | 710 |
| 5 | 1307 |
| 6 | 1623 |
| 7 | 4230 |
| 8 | 7170 |
| 9 | 19275 |
| 10 | 20331 |
| 11 | 20063 |
| 12 | 30486 |
| 13 | 55572 |
| 14 | 101135 |
| 15 | 199614 |
| 16 | 238806 |
| 17 | 317427 |
| 18 | 3145700 |
| 19 | 4450334 |
| 20 | 10163157 |
| 21 | 146173525 |
| 22 | 808182534 |
[153,206,292,710,1307,1623,4230,7170,19275,20331, 20063,30486,55572,101135,199614,238806,317427, 3145700,4450334,10163157,146173525,808182534] |