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.

A213818 Antidiagonal sums of the convolution array A213773.

Table of values

n a(n)
1 1
2 12
3 60
4 190
5 465
6 966
7 1792
8 3060
9 4905
10 7480
11 10956
12 15522
13 21385
14 28770
15 37920
16 49096
17 62577
18 78660
19 97660
20 119910
21 145761
22 175582
23 209760
24 248700
25 292825
26 342576
27 398412
28 460810
29 530265
30 607290
31 692416

List of values

[1, 12, 60, 190, 465, 966, 1792, 3060, 4905, 7480, 10956, 15522, 21385, 28770, 37920, 49096, 62577, 78660, 97660, 119910, 145761, 175582, 209760, 248700, 292825, 342576, 398412, 460810, 530265, 607290, 692416]