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A113597 as a simple table

n a(n)
0 1
1 0
2 0
3 1
4 3
5 16
6 212
7 10713
8 5691941
9 139578159558
10 1779979276420851744
11 555565404222512714988011077619
12 2211236406303914545143847565520581298983941196845
13 2746979206949941983182302875626552882765513393050066744028390937621757948751904

[1,0,0,1,3,16,212,10713,5691941,139578159558,
 1779979276420851744,
 555565404222512714988011077619,
 2211236406303914545143847565520581298983941196845,
 27469792069499419831823028756265528827655133930500\
 66744028390937621757948751904]

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Last modified May 22 04:02 EDT 2019. Contains 323473 sequences. (Running on oeis4.)