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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.

A255290 Number of 2's in expansion of F^n mod 3, where F = 1/(x*y)+2/y+x/y+2/x+2*x+y/x+2*y+x*y.

Table of values

n a(n)
0 0
1 4
2 9
3 4
4 32
5 36
6 9
7 84
8 96
9 4
10 32
11 84
12 32
13 256
14 288
15 36
16 336
17 420
18 9
19 84
20 216
21 84
22 672
23 744
24 96
25 852
26 1197
27 4
28 32
29 84
30 32
31 256
32 336
33 84
34 672
35 852
36 32
37 256
38 672
39 256
40 2048
41 2304
42 288
43 2352
44 2544
45 36
46 336
47 864
48 336
49 2688

List of values

[0, 4, 9, 4, 32, 36, 9, 84, 96, 4, 32, 84, 32, 256, 288, 36, 336, 420, 9, 84, 216, 84, 672, 744, 96, 852, 1197, 4, 32, 84, 32, 256, 336, 84, 672, 852, 32, 256, 672, 256, 2048, 2304, 288, 2352, 2544, 36, 336, 864, 336, 2688]

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

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