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.

A090042 a(n) = 2*a(n-1) + 11*a(n-2) for n > 1, a(0) = a(1) = 1.

Table of values

n a(n)
0 1
1 1
2 13
3 37
4 217
5 841
6 4069
7 17389
8 79537
9 350353
10 1575613
11 7005109
12 31341961
13 139740121
14 624241813
15 2785624957
16 12437909857
17 55517694241
18 247852396909
19 1106399430469
20 4939175226937
21 22048744189033
22 98428415874373
23 439393017828109
24 1961498610274321
25 8756320416657841

List of values

[1, 1, 13, 37, 217, 841, 4069, 17389, 79537, 350353, 1575613, 7005109, 31341961, 139740121, 624241813, 2785624957, 12437909857, 55517694241, 247852396909, 1106399430469, 4939175226937, 22048744189033, 98428415874373, 439393017828109, 1961498610274321, 8756320416657841]