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.

A092811 Expansion of g.f. (1-4*x)/(1-8*x).

Table of values

n a(n)
0 1
1 4
2 32
3 256
4 2048
5 16384
6 131072
7 1048576
8 8388608
9 67108864
10 536870912
11 4294967296
12 34359738368
13 274877906944
14 2199023255552
15 17592186044416
16 140737488355328
17 1125899906842624
18 9007199254740992
19 72057594037927936
20 576460752303423488
21 4611686018427387904

List of values

[1, 4, 32, 256, 2048, 16384, 131072, 1048576, 8388608, 67108864, 536870912, 4294967296, 34359738368, 274877906944, 2199023255552, 17592186044416, 140737488355328, 1125899906842624, 9007199254740992, 72057594037927936, 576460752303423488, 4611686018427387904]