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| n | a(n) |
|---|---|
| 1 | 1 |
| 2 | 16 |
| 3 | 569 |
| 4 | 22865 |
| 5 | 602565 |
| 6 | 20037184 |
| 7 | 697391125 |
| 8 | 23675552985 |
| 9 | 795238713880 |
| 10 | 26951220352400 |
| 11 | 913977071210296 |
| 12 | 30940515859900745 |
| 13 | 1047262588533673413 |
| 14 | 35458251391751991872 |
| 15 | 1200493587874267680981 |
| 16 | 40641478966775581618385 |
[1,16,569,22865,602565,20037184,697391125, 23675552985,795238713880,26951220352400, 913977071210296,30940515859900745, 1047262588533673413,35458251391751991872, 1200493587874267680981,40641478966775581618385] |