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A131011 as a simple table

n a(n)
10 0
11 0
12 0
13 0
14 0
15 0
16 0
17 0
18 0
19 0
20 45
21 134
22 309
23 652
24 1323
25 2634
26 5193
27 10184
28 19911
29 38854
30 133040
31 412527
32 1241773
33 3701864
34 10999194
35 32642353
36 96825335
37 287134794
38 851344708
39 2523819059
40 10866247001
41 43994094066
42 175538023511
43 697843906028

[0,0,0,0,0,0,0,0,0,0,45,134,309,652,1323,2634,
 5193,10184,19911,38854,133040,412527,1241773,
 3701864,10999194,32642353,96825335,287134794,
 851344708,2523819059,10866247001,43994094066,
 175538023511,697843906028]

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Last modified May 3 08:32 EDT 2024. Contains 372207 sequences. (Running on oeis4.)