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.

A053805 Expansion of (1 + x)^12 / (1 - x)^13.

Table of values

n a(n)
0 1
1 25
2 313
3 2625
4 16641
5 85305
6 369305
7 1392065
8 4673345
9 14218905
10 39753273
11 103274625
12 251595969
13 579168825
14 1267854873
15 2653649025
16 5334940545
17 10343052825
18 19403906105
19 35330137025
20 62596382081
21 108167252025
22 182668423833
23 302016962625
24 489658242241

List of values

[1, 25, 313, 2625, 16641, 85305, 369305, 1392065, 4673345, 14218905, 39753273, 103274625, 251595969, 579168825, 1267854873, 2653649025, 5334940545, 10343052825, 19403906105, 35330137025, 62596382081, 108167252025, 182668423833, 302016962625, 489658242241]