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| n | a(n) |
|---|---|
| 0 | 28 |
| 1 | 29 |
| 2 | 57 |
| 3 | 200 |
| 4 | 657 |
| 5 | 2171 |
| 6 | 2828 |
| 7 | 4999 |
| 8 | 282772 |
| 9 | 287771 |
| 10 | 570543 |
| 11 | 1999400 |
| 12 | 6568743 |
| 13 | 21705629 |
| 14 | 28274372 |
| 15 | 49980001 |
| 16 | 2827154428 |
| 17 | 2877134429 |
| 18 | 5704288857 |
| 19 | 19990001000 |
| 20 | 65674291857 |
| 21 | 217012876571 |
| 22 | 282687168428 |
| 23 | 499700044999 |
| 24 | 28265889688372 |
| 25 | 28765589733371 |
[28,29,57,200,657,2171,2828,4999,282772,287771, 570543,1999400,6568743,21705629,28274372,49980001, 2827154428,2877134429,5704288857,19990001000, 65674291857,217012876571,282687168428, 499700044999,28265889688372,28765589733371] |