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A019092 as a simple table

n a(n)
3 0
4 1
5 1
6 0
7 3
8 0
9 7
10 4
11 42
12 63
13 245
14 469
15 1392
16 2850
17 7536
18 15797
19 41646
20 90054
21 236923
22 532734
23 1388279
24 3215046
25 8251196
26 19482154
27 49498130
28 118495071
29 299326350
30 724425383
31 1825167876

[0,1,1,0,3,0,7,4,42,63,245,469,1392,2850,7536,
 15797,41646,90054,236923,532734,1388279,3215046,
 8251196,19482154,49498130,118495071,299326350,
 724425383,1825167876]

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Last modified September 17 19:36 EDT 2024. Contains 375990 sequences. (Running on oeis4.)