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.

A344109 a(n) = (5*2^n + 7*(-1)^n)/3.

Table of values

n a(n)
0 4
1 1
2 9
3 11
4 29
5 51
6 109
7 211
8 429
9 851
10 1709
11 3411
12 6829
13 13651
14 27309
15 54611
16 109229
17 218451
18 436909
19 873811
20 1747629
21 3495251
22 6990509
23 13981011
24 27962029
25 55924051
26 111848109
27 223696211
28 447392429
29 894784851
30 1789569709
31 3579139411
32 7158278829
33 14316557651
34 28633115309
35 57266230611
36 114532461229
37 229064922451

List of values

[4, 1, 9, 11, 29, 51, 109, 211, 429, 851, 1709, 3411, 6829, 13651, 27309, 54611, 109229, 218451, 436909, 873811, 1747629, 3495251, 6990509, 13981011, 27962029, 55924051, 111848109, 223696211, 447392429, 894784851, 1789569709, 3579139411, 7158278829, 14316557651, 28633115309, 57266230611, 114532461229, 229064922451]

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

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