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.

A249348 a(n) = (A001147(n+1)^2-1)/8, where A001147(n+1) = 3*5*...*(2n+1).

Table of values

n a(n)
0 0
1 1
2 28
3 1378
4 111628
5 13507003
6 2282683528
7 513603793828
8 148431496416328
9 53583770206294453
10 23630442660975853828
11 12500504167656226675078
12 7812815104785141671923828
13 5695542211388368278832470703
14 4789950999777617722498107861328

List of values

[0, 1, 28, 1378, 111628, 13507003, 2282683528, 513603793828, 148431496416328, 53583770206294453, 23630442660975853828, 12500504167656226675078, 7812815104785141671923828, 5695542211388368278832470703, 4789950999777617722498107861328]