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A322276 as a simple table

n a(n)
0 1
1 1
2 1
3 1
4 1
5 2
6 12
7 72
8 352
9 1472
10 5756
11 26336
12 180116
13 1577006
14 13720566
15 109776526
16 829240726
17 6488348726
18 59134377126
19 640605185526
20 7502207070150
21 87309498759810
22 989782736128170
23 11277397727184650
24 136523328121058170
25 1817775858886701082

[1,1,1,1,1,2,12,72,352,1472,5756,26336,180116,
 1577006,13720566,109776526,829240726,6488348726,
 59134377126,640605185526,7502207070150,
 87309498759810,989782736128170,11277397727184650,
 136523328121058170,1817775858886701082]

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Last modified July 28 07:12 EDT 2021. Contains 346317 sequences. (Running on oeis4.)