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| n | a(n) |
|---|---|
| 1 | 0 |
| 2 | 1 |
| 3 | 5 |
| 4 | 6 |
| 5 | 25 |
| 6 | 76 |
| 7 | 376 |
| 8 | 625 |
| 9 | 9376 |
| 10 | 90625 |
| 11 | 109376 |
| 12 | 890625 |
| 13 | 2890625 |
| 14 | 7109376 |
| 15 | 12890625 |
| 16 | 87109376 |
| 17 | 212890625 |
| 18 | 787109376 |
| 19 | 1787109376 |
| 20 | 8212890625 |
| 21 | 18212890625 |
| 22 | 81787109376 |
| 23 | 918212890625 |
| 24 | 9918212890625 |
| 25 | 40081787109376 |
| 26 | 59918212890625 |
| 27 | 259918212890625 |
| 28 | 740081787109376 |
[0,1,5,6,25,76,376,625,9376,90625,109376,890625, 2890625,7109376,12890625,87109376,212890625, 787109376,1787109376,8212890625,18212890625, 81787109376,918212890625,9918212890625, 40081787109376,59918212890625,259918212890625, 740081787109376] |