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.

A055786 Numerators of Taylor series expansion of arcsin(x). Also arises from arccos(x), arccsc(x), arcsec(x), arcsinh(x).

Table of values

n a(n)
0 1
1 1
2 3
3 5
4 35
5 63
6 231
7 143
8 6435
9 12155
10 46189
11 88179
12 676039
13 1300075
14 5014575
15 9694845
16 100180065
17 116680311
18 2268783825
19 1472719325
20 34461632205
21 67282234305
22 17534158031
23 514589420475
24 8061900920775
25 5267108601573

List of values

[1, 1, 3, 5, 35, 63, 231, 143, 6435, 12155, 46189, 88179, 676039, 1300075, 5014575, 9694845, 100180065, 116680311, 2268783825, 1472719325, 34461632205, 67282234305, 17534158031, 514589420475, 8061900920775, 5267108601573]