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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.

A370177 a(n) = floor(x*a(n-1)) for n > 0 where x = (7 + sqrt(77))/2, a(0) = 1.

Table of values

n a(n)
0 1
1 7
2 55
3 433
4 3415
5 26935
6 212449
7 1675687
8 13216951
9 104248465
10 822257911
11 6485544631
12 51154617793
13 403481136967
14 3182450283319
15 25101519942001
16 197987791577239
17 1561625180634679
18 12317290805483425
19 97152411902826727
20 766287918958171063
21 6044082316026984529

List of values

[1, 7, 55, 433, 3415, 26935, 212449, 1675687, 13216951, 104248465, 822257911, 6485544631, 51154617793, 403481136967, 3182450283319, 25101519942001, 197987791577239, 1561625180634679, 12317290805483425, 97152411902826727, 766287918958171063, 6044082316026984529]

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

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