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A136594 as a simple table

n a(n)
0 1
1 1
2 2
3 8
4 26
5 70
6 820
7 5152
8 20316
9 388712
10 3666188
11 17298908
12 501805832
13 6256792412
14 33844737292
15 1353617016078
16 20960708128068
17 137741948419428
18 6588092586831028
19 121860622573650906
20 924837580461274556

[1,1,2,8,26,70,820,5152,20316,388712,3666188,
 17298908,501805832,6256792412,33844737292,
 1353617016078,20960708128068,137741948419428,
 6588092586831028,121860622573650906,
 924837580461274556]

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Last modified June 13 10:36 EDT 2021. Contains 344988 sequences. (Running on oeis4.)