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.

A094430 a(n) is the rightmost term of M^n * [1 0 0], where M is the 3 X 3 matrix [0 1 0 / 0 0 1 / 7 -14 7].

Table of values

n a(n)
1 7
2 49
3 245
4 1078
5 4459
6 17836
7 69972
8 271313
9 1044435
10 4002467
11 15294370
12 58337097
13 222255768
14 846131608
15 3219700183
16 12247849145
17 46582062709
18 177142452214
19 673583231587
20 2561162729076
21 9737971026812
22 37024601601729

List of values

[7, 49, 245, 1078, 4459, 17836, 69972, 271313, 1044435, 4002467, 15294370, 58337097, 222255768, 846131608, 3219700183, 12247849145, 46582062709, 177142452214, 673583231587, 2561162729076, 9737971026812, 37024601601729]

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

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