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.

A215713 Denominator of sum(i=1..n, 3*i/4^i).

Table of values

n a(n)
1 4
2 8
3 64
4 16
5 1024
6 2048
7 16384
8 16384
9 262144
10 524288
11 4194304
12 2097152
13 67108864
14 134217728
15 1073741824
16 1073741824
17 17179869184
18 34359738368
19 274877906944
20 17179869184
21 4398046511104
22 8796093022208
23 70368744177664
24 70368744177664
25 1125899906842624

List of values

[4, 8, 64, 16, 1024, 2048, 16384, 16384, 262144, 524288, 4194304, 2097152, 67108864, 134217728, 1073741824, 1073741824, 17179869184, 34359738368, 274877906944, 17179869184, 4398046511104, 8796093022208, 70368744177664, 70368744177664, 1125899906842624]

Started in 1964 by Neil J. A. Sloane | Maintained by The OEIS Foundation Inc.

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