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A261479 as a simple table

n a(n)
0 1
1 0
2 0
3 1
4 7
5 458
6 18944
7 858023
8 42615547
9 2331292564
10 140077132527
11 9199520194445
12 656844469384222
13 50720708063406821
14 4215138323234299756
15 375319710150454887887
16 35660986210126871452435
17 3602425696957042245685448
18 385625195068544676072425069

[1,0,0,1,7,458,18944,858023,42615547,2331292564,
 140077132527,9199520194445,656844469384222,
 50720708063406821,4215138323234299756,
 375319710150454887887,35660986210126871452435,
 3602425696957042245685448,
 385625195068544676072425069]

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Last modified May 31 22:12 EDT 2024. Contains 373007 sequences. (Running on oeis4.)