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| n | a(n) |
|---|---|
| 0 | 1 |
| 1 | 4 |
| 2 | 22 |
| 3 | 56 |
| 4 | 181 |
| 5 | 256 |
| 6 | 730 |
| 7 | 968 |
| 8 | 1859 |
| 9 | 2368 |
| 10 | 4810 |
| 11 | 4680 |
| 12 | 9674 |
| 13 | 9944 |
| 14 | 15024 |
| 15 | 17580 |
| 16 | 29693 |
| 17 | 25792 |
| 18 | 47226 |
| 19 | 42476 |
| 20 | 62505 |
| 21 | 66388 |
| 22 | 104586 |
| 23 | 83700 |
| 24 | 141472 |
| 25 | 132768 |
| 26 | 181046 |
| 27 | 173964 |
| 28 | 273121 |
| 29 | 202124 |
| 30 | 359578 |
| 31 | 307860 |
| 32 | 410700 |
| 33 | 399924 |
| 34 | 551552 |
| 35 | 436980 |
| 36 | 743931 |
| 37 | 629304 |
| 38 | 816002 |
[1,4,22,56,181,256,730,968,1859,2368,4810,4680, 9674,9944,15024,17580,29693,25792,47226,42476, 62505,66388,104586,83700,141472,132768,181046, 173964,273121,202124,359578,307860,410700,399924, 551552,436980,743931,629304,816002] |