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.

A107891 a(n) = (n+1)*(n+2)^2*(n+3)^2*(n+4)*(3n^2 + 15n + 20)/2880.

Table of values

n a(n)
0 1
1 19
2 155
3 805
4 3136
5 9996
6 27468
7 67320
8 150645
9 313027
10 611611
11 1134497
12 2012920
13 3436720
14 5673648
15 9093096
16 14194881
17 21643755
18 32310355
19 47319349
20 68105576
21 96479020
22 134699500
23 185562000
24 252493605
25 339663051
26 452103939

List of values

[1, 19, 155, 805, 3136, 9996, 27468, 67320, 150645, 313027, 611611, 1134497, 2012920, 3436720, 5673648, 9093096, 14194881, 21643755, 32310355, 47319349, 68105576, 96479020, 134699500, 185562000, 252493605, 339663051, 452103939]