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A197973 as a simple table

n a(n)
1 2
2 6
3 35
4 327
5 3989
6 59605
7 1052849
8 21460093
9 495764694
10 12800845442
11 365323615366
12 11419131242071
13 387977390372850
14 14236659589753582
15 561109543344974894
16 23640346895461300428
17 1060265646084471617080
18 50434955069054663240728

[2,6,35,327,3989,59605,1052849,21460093,495764694,
 12800845442,365323615366,11419131242071,
 387977390372850,14236659589753582,
 561109543344974894,23640346895461300428,
 1060265646084471617080,50434955069054663240728]

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Last modified April 25 01:06 EDT 2024. Contains 371964 sequences. (Running on oeis4.)