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A222764 as a simple table

n a(n)
1 0
2 4
3 13
4 96
5 301
6 2242
7 7575
8 55958
9 196442
10 1448568
11 5188656
12 38338122
13 138866688
14 1029494580
15 3754449699
16 27929878716
17 102325331440
18 763577070328
19 2806916894109
20 21001612120424
21 77405327921654
22 580452846750048

[0,4,13,96,301,2242,7575,55958,196442,1448568,
 5188656,38338122,138866688,1029494580,3754449699,
 27929878716,102325331440,763577070328,
 2806916894109,21001612120424,77405327921654,
 580452846750048]

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Last modified September 9 06:26 EDT 2024. Contains 375759 sequences. (Running on oeis4.)