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| n | a(n) |
|---|---|
| 1 | 421 |
| 2 | 3433 |
| 3 | 431881 |
| 4 | 746353 |
| 5 | 2122213 |
| 6 | 84287689 |
| 7 | 161242273 |
| 8 | 574990681 |
| 9 | 1372256173 |
| 10 | 6589289569 |
| 11 | 8315492209 |
| 12 | 13246972549 |
| 13 | 40692828541 |
| 14 | 52396140061 |
| 15 | 75866105281 |
| 16 | 77916431221 |
| 17 | 82987207333 |
| 18 | 91919299573 |
| 19 | 140685402049 |
| 20 | 152665872493 |
| 21 | 188144420089 |
| 22 | 199536434869 |
| 23 | 265301989801 |
| 24 | 404110652329 |
| 25 | 406594932241 |
[421,3433,431881,746353,2122213,84287689, 161242273,574990681,1372256173,6589289569, 8315492209,13246972549,40692828541,52396140061, 75866105281,77916431221,82987207333,91919299573, 140685402049,152665872493,188144420089, 199536434869,265301989801,404110652329, 406594932241] |