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.

A060753 Denominator of 1*2*4*6*...*(prime(n-1)-1) / (2*3*5*7*...*prime(n-1)).

Table of values

n a(n)
1 1
2 2
3 3
4 15
5 35
6 77
7 1001
8 17017
9 323323
10 676039
11 2800733
12 86822723
13 3212440751
14 131710070791
15 5663533044013
16 11573306655157
17 47183480978717
18 95993978542907
19 5855632691117327
20 392327390304860909

List of values

[1, 2, 3, 15, 35, 77, 1001, 17017, 323323, 676039, 2800733, 86822723, 3212440751, 131710070791, 5663533044013, 11573306655157, 47183480978717, 95993978542907, 5855632691117327, 392327390304860909]