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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.

A238113 Expansion of (3 - 5*x - 3*sqrt(x^2-6*x+1))/(4*x).

Table of values

n a(n)
0 1
1 3
2 9
3 33
4 135
5 591
6 2709
7 12837
8 62379
9 309147
10 1556577
11 7940169
12 40946607
13 213118119
14 1118080557
15 5906404557
16 31390735059
17 167727039027
18 900478280889
19 4855086475761
20 26277928981335
21 142724482802943
22 777647813128389
23 4249385026394613
24 23282201473312635
25 127874913883456971
26 703929221807756049

List of values

[1, 3, 9, 33, 135, 591, 2709, 12837, 62379, 309147, 1556577, 7940169, 40946607, 213118119, 1118080557, 5906404557, 31390735059, 167727039027, 900478280889, 4855086475761, 26277928981335, 142724482802943, 777647813128389, 4249385026394613, 23282201473312635, 127874913883456971, 703929221807756049]

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

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