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.

A108647 a(n) = (n+1)^2*(n+2)^2*(n+3)^2*(n+4)/144.

Table of values

n a(n)
0 1
1 20
2 150
3 700
4 2450
5 7056
6 17640
7 39600
8 81675
9 157300
10 286286
11 496860
12 828100
13 1332800
14 2080800
15 3162816
16 4694805
17 6822900
18 9728950
19 13636700
20 18818646
21 25603600
22 34385000
23 45630000
24 59889375
25 77808276
26 100137870
27 127747900

List of values

[1, 20, 150, 700, 2450, 7056, 17640, 39600, 81675, 157300, 286286, 496860, 828100, 1332800, 2080800, 3162816, 4694805, 6822900, 9728950, 13636700, 18818646, 25603600, 34385000, 45630000, 59889375, 77808276, 100137870, 127747900]