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A133177
as a simple table
n
a(n)
1
0
2
0
3
0
4
1
5
0
6
3
7
1
8
13
9
10
10
66
11
112
12
723
13
2283
14
12616
15
62175
16
372420
17
2269398
18
15225551
19
107457456
[0,0,0,1,0,3,1,13,10,66,112,723,2283,12616,62175, 372420,2269398,15225551,107457456]
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Last modified April 19 17:37 EDT 2024. Contains 371795 sequences. (Running on oeis4.)