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This is a front-end for the Online Encyclopedia of Integer Sequences, made by Christian Perfect. The idea is to provide OEIS entries in non-ancient HTML, and then to think about how they're presented visually. The source code is on GitHub.

A213752 Rectangular array: (row n) = b**c, where b(h) = 2*h-1, c(h) = b(n-1+h), n>=1, h>=1, and ** = convolution.

Table of values

n a(n)
1 1
2 6
3 3
4 19
5 14
6 5
7 44
8 37
9 22
10 7
11 85
12 76
13 55
14 30
15 9
16 146
17 135
18 108
19 73
20 38
21 11
22 231
23 218
24 185
25 140
26 91
27 46
28 13
29 344
30 329
31 290
32 235
33 172
34 109
35 54
36 15
37 489
38 472
39 427
40 362
41 285
42 204
43 127
44 62
45 17
46 670
47 651
48 600
49 525
50 434
51 335
52 236
53 145
54 70
55 19
56 891
57 870
58 813

List of values

[1, 6, 3, 19, 14, 5, 44, 37, 22, 7, 85, 76, 55, 30, 9, 146, 135, 108, 73, 38, 11, 231, 218, 185, 140, 91, 46, 13, 344, 329, 290, 235, 172, 109, 54, 15, 489, 472, 427, 362, 285, 204, 127, 62, 17, 670, 651, 600, 525, 434, 335, 236, 145, 70, 19, 891, 870, 813]