cp's OEIS Frontend

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.

A213573 Rectangular array: (row n) = b**c, where b(h) = 2^(h-1), c(h) = (n-1+h)^2, n>=1, h>=1, and ** = convolution.

Table of values

n a(n)
1 1
2 6
3 4
4 21
5 17
6 9
7 58
8 50
9 34
10 16
11 141
12 125
13 93
14 57
15 25
16 318
17 286
18 222
19 150
20 86
21 36
22 685
23 621
24 493
25 349
26 221
27 121
28 49
29 1434
30 1306
31 1050
32 762
33 506
34 306
35 162
36 64
37 2949
38 2693
39 2181
40 1605
41 1093
42 693
43 405
44 209
45 81
46 5998
47 5486
48 4462
49 3310
50 2286
51 1486

List of values

[1, 6, 4, 21, 17, 9, 58, 50, 34, 16, 141, 125, 93, 57, 25, 318, 286, 222, 150, 86, 36, 685, 621, 493, 349, 221, 121, 49, 1434, 1306, 1050, 762, 506, 306, 162, 64, 2949, 2693, 2181, 1605, 1093, 693, 405, 209, 81, 5998, 5486, 4462, 3310, 2286, 1486]