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| n | a(n) |
|---|---|
| 1 | 20648 |
| 2 | 117256 |
| 3 | 663080 |
| 4 | 3785236 |
| 5 | 21652632 |
| 6 | 123827876 |
| 7 | 709026892 |
| 8 | 4062290944 |
| 9 | 23284325652 |
| 10 | 133483154922 |
| 11 | 765235772714 |
| 12 | 4387183095314 |
| 13 | 25153072167234 |
| 14 | 144214094669264 |
| 15 | 826855651232370 |
| 16 | 4740814985849206 |
| 17 | 27181749626302484 |
[20648,117256,663080,3785236,21652632,123827876, 709026892,4062290944,23284325652,133483154922, 765235772714,4387183095314,25153072167234, 144214094669264,826855651232370,4740814985849206, 27181749626302484] |