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.

A328191 Write 1/(1 + sin x) = Product_{n>=1} (1 + f_n x^n); a(n) = numerator(f_n).

Table of values

n a(n)
1 -1
2 1
3 1
4 5
5 19
6 -47
7 659
8 1837
9 7675
10 -154729
11 3578279
12 3984853
13 95259767
14 -1364856587
15 85215100151
16 46900690817
17 4180679675171
18 -157452879103733
19 6399968826052559
20 893237028559439
21 478887035449041839
22 -11642446645024341437
23 1123931378903214542099
24 15392026390952264029

List of values

[-1, 1, 1, 5, 19, -47, 659, 1837, 7675, -154729, 3578279, 3984853, 95259767, -1364856587, 85215100151, 46900690817, 4180679675171, -157452879103733, 6399968826052559, 893237028559439, 478887035449041839, -11642446645024341437, 1123931378903214542099, 15392026390952264029]