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.

A081422 Triangle read by rows in which row n consists of the first n+1 n-gonal numbers.

Table of values

n a(n)
0 1
1 1
2 1
3 1
4 2
5 3
6 1
7 3
8 6
9 10
10 1
11 4
12 9
13 16
14 25
15 1
16 5
17 12
18 22
19 35
20 51
21 1
22 6
23 15
24 28
25 45
26 66
27 91
28 1
29 7
30 18
31 34
32 55
33 81
34 112
35 148
36 1
37 8
38 21
39 40
40 65
41 96
42 133
43 176
44 225
45 1
46 9
47 24
48 46
49 75
50 111
51 154
52 204
53 261
54 325
55 1
56 10
57 27
58 52
59 85
60 126
61 175
62 232
63 297
64 370
65 451

List of values

[1, 1, 1, 1, 2, 3, 1, 3, 6, 10, 1, 4, 9, 16, 25, 1, 5, 12, 22, 35, 51, 1, 6, 15, 28, 45, 66, 91, 1, 7, 18, 34, 55, 81, 112, 148, 1, 8, 21, 40, 65, 96, 133, 176, 225, 1, 9, 24, 46, 75, 111, 154, 204, 261, 325, 1, 10, 27, 52, 85, 126, 175, 232, 297, 370, 451]

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

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