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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.

A213836 Rectangular array: (row n) = b**c, where b(h) = 4*h-3, c(h) = n-1+h, n>=1, h>=1, and ** = convolution.

Table of values

n a(n)
1 1
2 7
3 2
4 22
5 13
6 3
7 50
8 37
9 19
10 4
11 95
12 78
13 52
14 25
15 5
16 161
17 140
18 106
19 67
20 31
21 6
22 252
23 227
24 185
25 134
26 82
27 37
28 7
29 372
30 343
31 293
32 230
33 162
34 97
35 43
36 8
37 525
38 492
39 434
40 359
41 275
42 190
43 112
44 49
45 9
46 715
47 678
48 612
49 525
50 425
51 320
52 218
53 127

List of values

[1, 7, 2, 22, 13, 3, 50, 37, 19, 4, 95, 78, 52, 25, 5, 161, 140, 106, 67, 31, 6, 252, 227, 185, 134, 82, 37, 7, 372, 343, 293, 230, 162, 97, 43, 8, 525, 492, 434, 359, 275, 190, 112, 49, 9, 715, 678, 612, 525, 425, 320, 218, 127]