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| n | a(n) |
|---|---|
| 1 | 8 |
| 2 | 49 |
| 3 | 117 |
| 4 | 322 |
| 5 | 1100 |
| 6 | 2957 |
| 7 | 8254 |
| 8 | 26698 |
| 9 | 77788 |
| 10 | 221123 |
| 11 | 681855 |
| 12 | 2041108 |
| 13 | 5932703 |
| 14 | 17889612 |
| 15 | 53854606 |
| 16 | 158987996 |
| 17 | 475744589 |
| 18 | 1430898909 |
| 19 | 4260906900 |
| 20 | 12733223515 |
| 21 | 38231707572 |
| 22 | 114317071912 |
| 23 | 341873189152 |
| 24 | 1025366065205 |
| 25 | 3071359996945 |
[8,49,117,322,1100,2957,8254,26698,77788,221123, 681855,2041108,5932703,17889612,53854606, 158987996,475744589,1430898909,4260906900, 12733223515,38231707572,114317071912,341873189152, 1025366065205,3071359996945] |