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.

A181353 a(n) = 9*a(n-1) + 3*a(n-2); a(0) = 0, a(1) = 1.

Table of values

n a(n)
0 0
1 1
2 9
3 84
4 783
5 7299
6 68040
7 634257
8 5912433
9 55114668
10 513769311
11 4789267803
12 44644718160
13 416170266849
14 3879466556121
15 36163709805636
16 337111787919087
17 3142497220688691
18 29293810349955480
19 273071784811665393
20 2545527494354854977
21 23728962803628690972

List of values

[0, 1, 9, 84, 783, 7299, 68040, 634257, 5912433, 55114668, 513769311, 4789267803, 44644718160, 416170266849, 3879466556121, 36163709805636, 337111787919087, 3142497220688691, 29293810349955480, 273071784811665393, 2545527494354854977, 23728962803628690972]