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.

A110051 Expansion of (1-x+2*x^3+x^2)/((1-x)*(2*x+1)*(2*x-1)*(4*x^2+4*x-1)).

Table of values

n a(n)
0 1
1 4
2 25
3 119
4 599
5 2887
6 14039
7 67767
8 327607
9 1581751
10 7638967
11 36883895
12 178097591
13 859930039
14 4152135095
15 20048276919
16 96801746359
17 467400158647
18 2256808013239
19 10896832949687
20 52614565424567
21 254045594545591

List of values

[1, 4, 25, 119, 599, 2887, 14039, 67767, 327607, 1581751, 7638967, 36883895, 178097591, 859930039, 4152135095, 20048276919, 96801746359, 467400158647, 2256808013239, 10896832949687, 52614565424567, 254045594545591]