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A221790 as a simple table

n a(n)
1 0
2 0
3 0
4 41
5 744
6 13682
7 252538
8 6854851
9 164812860
10 3910715845
11 93559893342
12 2237836782957
13 53523158868734
14 1280239234256052
15 30622982026043674
16 732499733448014272
17 17521416005086345402

[0,0,0,41,744,13682,252538,6854851,164812860,
 3910715845,93559893342,2237836782957,
 53523158868734,1280239234256052,30622982026043674,
 732499733448014272,17521416005086345402]

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Last modified September 26 11:22 EDT 2021. Contains 347665 sequences. (Running on oeis4.)