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| n | a(n) |
|---|---|
| 1 | 46 |
| 2 | 226 |
| 3 | 1108 |
| 4 | 5446 |
| 5 | 26794 |
| 6 | 131896 |
| 7 | 649450 |
| 8 | 3198322 |
| 9 | 15751828 |
| 10 | 77581198 |
| 11 | 382112002 |
| 12 | 1882042264 |
| 13 | 9269800642 |
| 14 | 45657552106 |
| 15 | 224882405380 |
| 16 | 1107640064854 |
| 17 | 5455593492922 |
| 18 | 26871099434488 |
| 19 | 132351514215994 |
| 20 | 651887143644034 |
[46,226,1108,5446,26794,131896,649450,3198322, 15751828,77581198,382112002,1882042264,9269800642, 45657552106,224882405380,1107640064854, 5455593492922,26871099434488,132351514215994, 651887143644034] |