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A071334 as a simple table

n a(n)
1 0
2 0
3 0
4 0
5 0
6 0
7 1
8 0
9 20
10 103
11 594
12 1192
13 6290
14 18099
15 54808
16 159048
17 502366
18 1374593
19 4076218
20 11378831
21 32674779
22 93006494
23 264720498
24 748062099
25 2134512296
26 6071524897
27 17289205132
28 49268564671
29 140605019208
30 401392287316

[0,0,0,0,0,0,1,0,20,103,594,1192,6290,18099,54808,
 159048,502366,1374593,4076218,11378831,32674779,
 93006494,264720498,748062099,2134512296,
 6071524897,17289205132,49268564671,140605019208,
 401392287316]

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Last modified April 25 08:27 EDT 2024. Contains 371964 sequences. (Running on oeis4.)