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.

A083589 Expansion of 1/((1-4*x)*(1-x^4)).

Table of values

n a(n)
0 1
1 4
2 16
3 64
4 257
5 1028
6 4112
7 16448
8 65793
9 263172
10 1052688
11 4210752
12 16843009
13 67372036
14 269488144
15 1077952576
16 4311810305
17 17247241220
18 68988964880
19 275955859520
20 1103823438081
21 4415293752324
22 17661175009296
23 70644700037184

List of values

[1, 4, 16, 64, 257, 1028, 4112, 16448, 65793, 263172, 1052688, 4210752, 16843009, 67372036, 269488144, 1077952576, 4311810305, 17247241220, 68988964880, 275955859520, 1103823438081, 4415293752324, 17661175009296, 70644700037184]