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.

A213550 Rectangular array: (row n) = b**c, where b(h) = h*(h+1)/2, c(h) = n-1+h, n>=1, h>=1, and ** = convolution.

Table of values

n a(n)
1 1
2 5
3 2
4 15
5 9
6 3
7 35
8 25
9 13
10 4
11 70
12 55
13 35
14 17
15 5
16 126
17 105
18 75
19 45
20 21
21 6
22 210
23 182
24 140
25 95
26 55
27 25
28 7
29 330
30 294
31 238
32 175
33 115
34 65
35 29
36 8
37 495
38 450
39 378
40 294
41 210
42 135
43 75
44 33
45 9
46 715
47 660
48 570
49 462
50 350
51 245
52 155
53 85
54 37
55 10
56 1001
57 935
58 825
59 690
60 546

List of values

[1, 5, 2, 15, 9, 3, 35, 25, 13, 4, 70, 55, 35, 17, 5, 126, 105, 75, 45, 21, 6, 210, 182, 140, 95, 55, 25, 7, 330, 294, 238, 175, 115, 65, 29, 8, 495, 450, 378, 294, 210, 135, 75, 33, 9, 715, 660, 570, 462, 350, 245, 155, 85, 37, 10, 1001, 935, 825, 690, 546]