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| n | a(n) |
|---|---|
| 1 | 1471 |
| 2 | 5214 |
| 3 | 21510 |
| 4 | 47308 |
| 5 | 268555 |
| 6 | 1215491 |
| 7 | 2662952 |
| 8 | 15755867 |
| 9 | 73792188 |
| 10 | 160605830 |
| 11 | 977103095 |
| 12 | 4668722734 |
| 13 | 10119572634 |
| 14 | 62609075589 |
| 15 | 302574704284 |
| 16 | 654293895244 |
| 17 | 4086229186201 |
| 18 | 19870347822346 |
| 19 | 42913053749386 |
[1471,5214,21510,47308,268555,1215491,2662952, 15755867,73792188,160605830,977103095,4668722734, 10119572634,62609075589,302574704284,654293895244, 4086229186201,19870347822346,42913053749386] |