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| n | a(n) |
|---|---|
| 1 | 1437 |
| 2 | 7127 |
| 3 | 36865 |
| 4 | 192080 |
| 5 | 1013668 |
| 6 | 5369493 |
| 7 | 28334280 |
| 8 | 149505326 |
| 9 | 790698276 |
| 10 | 4174729955 |
| 11 | 22050216974 |
| 12 | 116497519764 |
| 13 | 615331114030 |
| 14 | 3250347051592 |
| 15 | 17169846689204 |
| 16 | 90695916099313 |
| 17 | 479084441304253 |
| 18 | 2530691611653147 |
[1437,7127,36865,192080,1013668,5369493,28334280, 149505326,790698276,4174729955,22050216974, 116497519764,615331114030,3250347051592, 17169846689204,90695916099313,479084441304253, 2530691611653147] |