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| n | a(n) |
|---|---|
| 0 | 1 |
| 1 | 44 |
| 2 | 447 |
| 3 | 2248 |
| 4 | 7685 |
| 5 | 20676 |
| 6 | 47299 |
| 7 | 96272 |
| 8 | 179433 |
| 9 | 312220 |
| 10 | 514151 |
| 11 | 809304 |
| 12 | 1226797 |
| 13 | 1801268 |
| 14 | 2573355 |
| 15 | 3590176 |
| 16 | 4905809 |
| 17 | 6581772 |
| 18 | 8687503 |
| 19 | 11300840 |
| 20 | 14508501 |
| 21 | 18406564 |
| 22 | 23100947 |
| 23 | 28707888 |
| 24 | 35354425 |
| 25 | 43178876 |
| 26 | 52331319 |
[1,44,447,2248,7685,20676,47299,96272,179433, 312220,514151,809304,1226797,1801268,2573355, 3590176,4905809,6581772,8687503,11300840,14508501, 18406564,23100947,28707888,35354425,43178876, 52331319] |