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.

A122910 Expansion of (1-2x-3x^2)/((1-2x)(1+4x)(1-8x)).

Table of values

n a(n)
0 1
1 4
2 45
3 302
4 2636
5 20184
6 165040
7 1305952
8 10504896
9 83809664
10 671394560
11 5367485952
12 42954566656
13 343577810944
14 2748857364480
15 21989919383552
16 175923113148416
17 1407369872769024
18 11259019111628800
19 90071912374730752

List of values

[1, 4, 45, 302, 2636, 20184, 165040, 1305952, 10504896, 83809664, 671394560, 5367485952, 42954566656, 343577810944, 2748857364480, 21989919383552, 175923113148416, 1407369872769024, 11259019111628800, 90071912374730752]

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

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