cp's OEIS Frontend

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.

A190987 a(n) = 10*a(n-1) - 5*a(n-2), with a(0)=0, a(1)=1.

Table of values

n a(n)
0 0
1 1
2 10
3 95
4 900
5 8525
6 80750
7 764875
8 7245000
9 68625625
10 650031250
11 6157184375
12 58321687500
13 552430953125
14 5232701093750
15 49564856171875
16 469485056250000
17 4447026281640625
18 42122837535156250
19 398993243943359375
20 3779318251757812500
21 35798216297861328125

List of values

[0, 1, 10, 95, 900, 8525, 80750, 764875, 7245000, 68625625, 650031250, 6157184375, 58321687500, 552430953125, 5232701093750, 49564856171875, 469485056250000, 4447026281640625, 42122837535156250, 398993243943359375, 3779318251757812500, 35798216297861328125]