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| n | a(n) |
|---|---|
| 1 | 79172 |
| 2 | 107992 |
| 3 | 170300 |
| 4 | 309016 |
| 5 | 629132 |
| 6 | 1398952 |
| 7 | 3333500 |
| 8 | 8411896 |
| 9 | 22294892 |
| 10 | 61632712 |
| 11 | 176596700 |
| 12 | 521681176 |
| 13 | 1582485452 |
| 14 | 4916663272 |
| 15 | 15625379900 |
| 16 | 50774508856 |
| 17 | 168710304812 |
| 18 | 573264314632 |
| 19 | 1991498803100 |
| 20 | 7067664046936 |
[79172,107992,170300,309016,629132,1398952, 3333500,8411896,22294892,61632712,176596700, 521681176,1582485452,4916663272,15625379900, 50774508856,168710304812,573264314632, 1991498803100,7067664046936] |