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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.

A292535 p-INVERT of the squares (A000290), where p(S) = 1 + S - 2 S^2.

Table of values

n a(n)
0 1
1 7
2 38
3 189
4 909
5 4368
6 21093
7 102051
8 493702
9 2387689
10 11546425
11 55837024
12 270025769
13 1305841103
14 6315023830
15 30539305893
16 147687325509
17 714212301776
18 3453913488845
19 16703042620715
20 80775512179990
21 390628431683601
22 1889069687788593
23 9135495517900480

List of values

[1, 7, 38, 189, 909, 4368, 21093, 102051, 493702, 2387689, 11546425, 55837024, 270025769, 1305841103, 6315023830, 30539305893, 147687325509, 714212301776, 3453913488845, 16703042620715, 80775512179990, 390628431683601, 1889069687788593, 9135495517900480]

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

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