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| n | a(n) |
|---|---|
| 1 | 1 |
| 2 | 4 |
| 3 | 9 |
| 4 | 16 |
| 5 | 76 |
| 6 | 162 |
| 7 | 418 |
| 8 | 1892 |
| 9 | 19094 |
| 10 | 19298 |
| 11 | 20059 |
| 12 | 84653 |
| 13 | 174566 |
| 14 | 1688099 |
[1,4,9,16,76,162,418,1892,19094,19298,20059,84653, 174566,1688099] |