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| n | a(n) |
|---|---|
| 0 | 0 |
| 1 | 1 |
| 2 | 9 |
| 3 | 225 |
| 4 | 11025 |
| 5 | 1334025 |
| 6 | 225450225 |
| 7 | 65155115025 |
| 8 | 23520996524025 |
| 9 | 12442607161209225 |
| 10 | 10464232622576958225 |
| 11 | 10056127550296456854225 |
| 12 | 13766838616355849433434025 |
| 13 | 23142055714094182897602596025 |
| 14 | 42789661015360144177667200050225 |
| 15 | 94522361182930558488466844910947025 |
| 16 | 265513312562851938794103367354850193225 |
[0,1,9,225,11025,1334025,225450225,65155115025, 23520996524025,12442607161209225, 10464232622576958225,10056127550296456854225, 13766838616355849433434025, 23142055714094182897602596025, 42789661015360144177667200050225, 94522361182930558488466844910947025, 265513312562851938794103367354850193225] |