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A220636 as a simple table

n a(n)
1 1
2 1
3 13
4 351
5 8560
6 183961
7 3817452
8 79063898
9 1643423543
10 34184820039
11 711142299027
12 14793696906106
13 307746212613995
14 6401868705356519
15 133174202661890384
16 2770341001987547086
17 57629691849567578540

[1,1,13,351,8560,183961,3817452,79063898,
 1643423543,34184820039,711142299027,
 14793696906106,307746212613995,6401868705356519,
 133174202661890384,2770341001987547086,
 57629691849567578540]

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Last modified April 24 03:08 EDT 2024. Contains 371918 sequences. (Running on oeis4.)