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A331438 as a simple table

n a(n)
1 1
2 0
3 1
4 0
5 0
6 0
7 0
8 0
9 0
10 0
11 4
12 0
13 0
14 1
15 0
16 0
17 0
18 0
19 5
20 0
21 0
22 20
23 15
24 10
25 1
26 0
27 0
28 0
29 0
30 0
31 96
32 120
33 180
34 420
35 700
36 837
37 765
38 395
39 105
40 15
41 1
42 0
43 0
44 0
45 0
46 0
47 0
48 427
49 1260
50 3780
51 10850
52 24045
53 44814
54 68040
55 80955
56 70500
57 43232
58 18774
59 5880
60 1330
61 210
62 21
63 1
64 0
65 0
66 0
67 0
68 0
69 0
70 0
71 6448
72 23520
73 79800
74 269360
75 782880
76 1956136
77 4203360
78 7610340
79 11365676

[1,0,1,0,0,0,0,0,0,0,4,0,0,1,0,0,0,0,5,0,0,20,15,
 10,1,0,0,0,0,0,96,120,180,420,700,837,765,395,105,
 15,1,0,0,0,0,0,0,427,1260,3780,10850,24045,44814,
 68040,80955,70500,43232,18774,5880,1330,210,21,1,
 0,0,0,0,0,0,0,6448,23520,79800,269360,782880,
 1956136,4203360,7610340,11365676]

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Last modified July 30 12:39 EDT 2021. Contains 346359 sequences. (Running on oeis4.)