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A229130 as a simple table

n a(n)
1 1
2 0
3 1
4 1
5 0
6 6
7 3
8 42
9 68
10 2794
11 0
12 5311604
13 478
14 57009
15 2716452
16 10778632
17 207360
18 39187872956340
19 106144
20 26869397610
21 11775466120
22 22062519153360
23 559350576
24 29991180449906858400
25 257272815600
26 12675330087321600
27 52248156883498208

[1,0,1,1,0,6,3,42,68,2794,0,5311604,478,57009,
 2716452,10778632,207360,39187872956340,106144,
 26869397610,11775466120,22062519153360,559350576,
 29991180449906858400,257272815600,
 12675330087321600,52248156883498208]

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Last modified April 19 13:40 EDT 2024. Contains 371792 sequences. (Running on oeis4.)