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A241365 as a simple table
| n | a(n) |
|---|---|
| 1 | 2 |
| 2 | 28 |
| 3 | 460 |
| 4 | 7376 |
| 5 | 118488 |
| 6 | 1904096 |
| 7 | 30598800 |
| 8 | 491723328 |
| 9 | 7902006144 |
| 10 | 126985443680 |
| 11 | 2040659387360 |
| 12 | 32793449527584 |
| 13 | 526991588462752 |
| 14 | 8468768559462432 |
| 15 | 136093331438385952 |
| 16 | 2187023382674637856 |
| 17 | 35145522751283965984 |
[2,28,460,7376,118488,1904096,30598800,491723328, 7902006144,126985443680,2040659387360, 32793449527584,526991588462752,8468768559462432, 136093331438385952,2187023382674637856, 35145522751283965984] |