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.

A221366 The simple continued fraction expansion of F(x) := Product_{n >= 0} (1 - x^(4*n+3))/(1 - x^(4*n+1)) when x = (1/2)*(7 - 3*sqrt(5)).

Table of values

n a(n)
0 1
1 5
2 1
3 45
4 1
5 320
6 1
7 2205
8 1
9 15125
10 1
11 103680
12 1
13 710645
14 1
15 4870845
16 1
17 33385280
18 1
19 228826125
20 1
21 1568397605
22 1
23 10749957120
24 1
25 73681302245
26 1
27 505019158605
28 1
29 3461452808000
30 1
31 23725150497405
32 1

List of values

[1, 5, 1, 45, 1, 320, 1, 2205, 1, 15125, 1, 103680, 1, 710645, 1, 4870845, 1, 33385280, 1, 228826125, 1, 1568397605, 1, 10749957120, 1, 73681302245, 1, 505019158605, 1, 3461452808000, 1, 23725150497405, 1]