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| n | a(n) |
|---|---|
| 1 | 64 |
| 2 | 301 |
| 3 | 115 |
| 4 | 448 |
| 5 | 1084 |
| 6 | 1798 |
| 7 | 4679 |
| 8 | 10688 |
| 9 | 22503 |
| 10 | 53875 |
| 11 | 123435 |
| 12 | 278930 |
| 13 | 642076 |
| 14 | 1469878 |
| 15 | 3378674 |
| 16 | 7738804 |
| 17 | 17769468 |
| 18 | 40807932 |
| 19 | 93610115 |
| 20 | 214883906 |
| 21 | 493564409 |
| 22 | 1132812315 |
| 23 | 2601500535 |
| 24 | 5974070555 |
| 25 | 13717158924 |
| 26 | 31501633865 |
| 27 | 72344724752 |
[64,301,115,448,1084,1798,4679,10688,22503,53875, 123435,278930,642076,1469878,3378674,7738804, 17769468,40807932,93610115,214883906,493564409, 1132812315,2601500535,5974070555,13717158924, 31501633865,72344724752] |