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A159726 as a simple table

n a(n)
1 0
2 0
3 0
4 1256
5 24483200
6 55067152128
7 57615626479712
8 41069543783239872
9 23516539818144774912
10 11776285299306762639680
11 5412720242324956991133440
12 2351154988094363114287766016
13 983075755980176565659196488192
14 400400884398187607904444939190272

[0,0,0,1256,24483200,55067152128,57615626479712,
 41069543783239872,23516539818144774912,
 11776285299306762639680,5412720242324956991133440,
 2351154988094363114287766016,
 983075755980176565659196488192,
 400400884398187607904444939190272]

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Last modified September 3 16:12 EDT 2024. Contains 375672 sequences. (Running on oeis4.)