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A232223 as a simple table

n a(n)
1 1
2 0
3 3
4 0
5 1
6 12
7 0
8 0
9 10
10 55
11 0
12 0
13 4
14 77
15 273
16 0
17 0
18 1
19 60
20 546
21 1428
22 0
23 0
24 0
25 35
26 624
27 3740
28 7752
29 0
30 0
31 0
32 15
33 546
34 5600
35 25194
36 43263
37 0
38 0
39 0
40 5
41 391
42 6405
43 46512
44 168245
45 246675
46 0
47 0
48 0
49 1
50 240
51 6125
52 65076
53 368676
54 1118260
55 1430715
56 0
57 0
58 0
59 0
60 126
61 5138
62 76296
63 606879
64 2833600
65 7413705
66 8414640
67 0
68 0
69 0
70 0
71 56
72 3857
73 78880
74 834195
75 5348420
76 21312720
77 49085400
78 50067108

[1,0,3,0,1,12,0,0,10,55,0,0,4,77,273,0,0,1,60,546,
 1428,0,0,0,35,624,3740,7752,0,0,0,15,546,5600,
 25194,43263,0,0,0,5,391,6405,46512,168245,246675,
 0,0,0,1,240,6125,65076,368676,1118260,1430715,0,0,
 0,0,126,5138,76296,606879,2833600,7413705,8414640,
 0,0,0,0,56,3857,78880,834195,5348420,21312720,
 49085400,50067108]

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Last modified March 28 08:22 EDT 2024. Contains 371236 sequences. (Running on oeis4.)