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A261727 as a simple table

n a(n)
1 1
2 0
3 0
4 2
5 0
6 3
7 0
8 0
9 0
10 25
11 46
12 90
13 172
14 141
15 275
16 601
17 1102
18 2199
19 4150

[1,0,0,2,0,3,0,0,0,25,46,90,172,141,275,601,1102,
 2199,4150]

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Last modified August 9 21:08 EDT 2022. Contains 356026 sequences. (Running on oeis4.)