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.

A081435 Diagonal in array of n-gonal numbers A081422.

Table of values

n a(n)
0 1
1 5
2 18
3 46
4 95
5 171
6 280
7 428
8 621
9 865
10 1166
11 1530
12 1963
13 2471
14 3060
15 3736
16 4505
17 5373
18 6346
19 7430
20 8631
21 9955
22 11408
23 12996
24 14725
25 16601
26 18630
27 20818
28 23171
29 25695
30 28396
31 31280
32 34353
33 37621
34 41090
35 44766
36 48655
37 52763
38 57096
39 61660

List of values

[1, 5, 18, 46, 95, 171, 280, 428, 621, 865, 1166, 1530, 1963, 2471, 3060, 3736, 4505, 5373, 6346, 7430, 8631, 9955, 11408, 12996, 14725, 16601, 18630, 20818, 23171, 25695, 28396, 31280, 34353, 37621, 41090, 44766, 48655, 52763, 57096, 61660]