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.

A271924 Denominator of (1/3)*(Product_{j=0..n-1} (((2*j+1)*(3*j+4))/((j+1)*(6*j+1))) - 1).

Table of values

n a(n)
1 1
2 3
3 13
4 19
5 285
6 465
7 17205
8 147963
9 345247
10 11137
11 291153
12 175741
13 12829093
14 494964309
15 494964309
16 919219431
17 6858791139
18 706455487317
19 77003648117553
20 1262354887173
21 1262354887173
22 26321041453443
23 500099787615417
24 952244801075931
25 50118147425049
26 95795446344081

List of values

[1, 3, 13, 19, 285, 465, 17205, 147963, 345247, 11137, 291153, 175741, 12829093, 494964309, 494964309, 919219431, 6858791139, 706455487317, 77003648117553, 1262354887173, 1262354887173, 26321041453443, 500099787615417, 952244801075931, 50118147425049, 95795446344081]