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| n | a(n) |
|---|---|
| 0 | 4 |
| 1 | 4 |
| 2 | 8 |
| 3 | 104 |
| 4 | 212 |
| 5 | 313 |
| 6 | 11645 |
| 7 | 2329 |
| 8 | 73757 |
| 9 | 160772 |
| 10 | 646925 |
| 11 | 129385 |
| 12 | 25877 |
| 13 | 49838696 |
| 14 | 2503218301 |
| 15 | 16177487972 |
| 16 | 18226737365 |
| 17 | 3645347473 |
| 18 | 2526514341077 |
| 19 | 2510040201736 |
| 20 | 43137313790909 |
| 21 | 136233128831473 |
| 22 | 1960924754787877 |
| 23 | 1733911367978596 |
| 24 | 27260145118408781 |
[4,4,8,104,212,313,11645,2329,73757,160772,646925, 129385,25877,49838696,2503218301,16177487972, 18226737365,3645347473,2526514341077, 2510040201736,43137313790909,136233128831473, 1960924754787877,1733911367978596, 27260145118408781] |