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A090667 as a simple table

n a(n)
0 1
1 1
2 13
3 149
4 1490
5 13624
6 117920
7 987568
8 8111200
9 65866496
10 531372800
11 4270866688
12 34254920192
13 274425014272
14 2197077311488
15 17583865032704
16 140702055981056
17 1125749585477632
18 9006563605151744
19 72054913990721536
20 576449482336632832
21 4611638739487686656

[1,1,13,149,1490,13624,117920,987568,8111200,
 65866496,531372800,4270866688,34254920192,
 274425014272,2197077311488,17583865032704,
 140702055981056,1125749585477632,9006563605151744,
 72054913990721536,576449482336632832,
 4611638739487686656]

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Last modified April 19 21:09 EDT 2024. Contains 371798 sequences. (Running on oeis4.)