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.

A171180 a(n) = (4*n + 1)^(1/2)/(4*n + 1)*((1 - p)*q^n - (1 - q)*p^n), where p = (1 - (4*n + 1)^(1/2))/2 and q = (1 + (4*n + 1)^(1/2))/2.

Table of values

n a(n)
1 1
2 3
3 7
4 29
5 96
6 463
7 1905
8 10233
9 49159
10 287891
11 1557744
12 9814741
13 58451849
14 392539575
15 2532516511
16 17999936497
17 124360077816
18 930257069563
19 6822980957481
20 53470578301581
21 413527226164711
22 3382254701784223
23 27432377661111360
24 233410016529114601

List of values

[1, 3, 7, 29, 96, 463, 1905, 10233, 49159, 287891, 1557744, 9814741, 58451849, 392539575, 2532516511, 17999936497, 124360077816, 930257069563, 6822980957481, 53470578301581, 413527226164711, 3382254701784223, 27432377661111360, 233410016529114601]