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A177840 as a simple table

n a(n)
0 1
1 1
2 21
3 653
4 37577
5 3434169
6 457819549
7 83900098309
8 20238575173137
9 6217167231292913
10 2369809434953636261
11 1097587512530348834301
12 607119566298408076479961
13 395312612701784187384578473
14 299298318246814086742418737197
15 260721599469397754183307347278709

[1,1,21,653,37577,3434169,457819549,83900098309,
 20238575173137,6217167231292913,
 2369809434953636261,1097587512530348834301,
 607119566298408076479961,
 395312612701784187384578473,
 299298318246814086742418737197,
 260721599469397754183307347278709]

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Last modified March 29 08:59 EDT 2024. Contains 371268 sequences. (Running on oeis4.)