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| n | a(n) |
|---|---|
| 0 | 1 |
| 1 | 1 |
| 2 | 225 |
| 3 | 343396 |
| 4 | 44944 |
| 5 | 505575225 |
| 6 | 4666665969 |
| 7 | 77770707876 |
| 8 | 388888184881 |
| 9 | 9499999990849 |
| 10 | 1010101019780101025109910101001 |
| 11 | 1101191170117113111111301111961124 |
| 12 | 121214127521273511212121212512121241 |
| 13 | 135131321313113136131313387213513731136 |
[1,1,225,343396,44944,505575225,4666665969, 77770707876,388888184881,9499999990849, 1010101019780101025109910101001, 1101191170117113111111301111961124, 121214127521273511212121212512121241, 135131321313113136131313387213513731136] |