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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.

A213761 Rectangular array: (row n) = b**c, where b(h) = h, c(h) = 3*n-5+3*h, n>=1, h>=1, and ** = convolution.

Table of values

n a(n)
1 1
2 6
3 4
4 18
5 15
6 7
7 40
8 36
9 24
10 10
11 75
12 70
13 54
14 33
15 13
16 126
17 120
18 100
19 72
20 42
21 16
22 196
23 189
24 165
25 130
26 90
27 51
28 19
29 288
30 280
31 252
32 210
33 160
34 108
35 60
36 22
37 405
38 396
39 364
40 315
41 255
42 190
43 126
44 69
45 25
46 550
47 540
48 504
49 448
50 378
51 300

List of values

[1, 6, 4, 18, 15, 7, 40, 36, 24, 10, 75, 70, 54, 33, 13, 126, 120, 100, 72, 42, 16, 196, 189, 165, 130, 90, 51, 19, 288, 280, 252, 210, 160, 108, 60, 22, 405, 396, 364, 315, 255, 190, 126, 69, 25, 550, 540, 504, 448, 378, 300]

Started in 1964 by Neil J. A. Sloane | Maintained by The OEIS Foundation Inc.

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