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.

A291026 p-INVERT of the positive integers, where p(S) = 1 - 4*S + S^2.

Table of values

n a(n)
0 4
1 23
2 128
3 711
4 3948
5 21920
6 121700
7 675673
8 3751296
9 20826953
10 115629868
11 641969344
12 3564171060
13 19788040311
14 109861881472
15 609945846247
16 3386378699324
17 18800948912352
18 104381615697460
19 579519775642745
20 3217455182279552
21 17863096800262569

List of values

[4, 23, 128, 711, 3948, 21920, 121700, 675673, 3751296, 20826953, 115629868, 641969344, 3564171060, 19788040311, 109861881472, 609945846247, 3386378699324, 18800948912352, 104381615697460, 579519775642745, 3217455182279552, 17863096800262569]

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

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