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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.

A175395 a(n) = 2*Fibonacci(n)^2.

Table of values

n a(n)
0 0
1 2
2 2
3 8
4 18
5 50
6 128
7 338
8 882
9 2312
10 6050
11 15842
12 41472
13 108578
14 284258
15 744200
16 1948338
17 5100818
18 13354112
19 34961522
20 91530450
21 239629832
22 627359042
23 1642447298
24 4299982848
25 11257501250
26 29472520898
27 77160061448
28 202007663442
29 528862928882
30 1384581123200
31 3624880440722
32 9490060198962
33 24845300156168
34 65045840269538
35 170292220652450
36 445830821687808
37 1167200244410978
38 3055769911545122
39 8000109490224392
40 20944558559128050

List of values

[0, 2, 2, 8, 18, 50, 128, 338, 882, 2312, 6050, 15842, 41472, 108578, 284258, 744200, 1948338, 5100818, 13354112, 34961522, 91530450, 239629832, 627359042, 1642447298, 4299982848, 11257501250, 29472520898, 77160061448, 202007663442, 528862928882, 1384581123200, 3624880440722, 9490060198962, 24845300156168, 65045840269538, 170292220652450, 445830821687808, 1167200244410978, 3055769911545122, 8000109490224392, 20944558559128050]

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

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