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.

A090310 a(n) = 21*a(n-1) + a(n-2), starting with a(0) = 2 and a(1) = 21.

Table of values

n a(n)
0 2
1 21
2 443
3 9324
4 196247
5 4130511
6 86936978
7 1829807049
8 38512885007
9 810600392196
10 17061121121123
11 359094143935779
12 7558038143772482
13 159077895163157901
14 3348193836570088403
15 70471148463135014364

List of values

[2, 21, 443, 9324, 196247, 4130511, 86936978, 1829807049, 38512885007, 810600392196, 17061121121123, 359094143935779, 7558038143772482, 159077895163157901, 3348193836570088403, 70471148463135014364]