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.

A087307 Triangle read by rows: n-th row is the first arithmetic progression with common difference n of n numbers with the same prime signature.

Table of values

n a(n)
1 1
2 3
3 5
4 155
5 158
6 161
7 111
8 115
9 119
10 123
11 3875983
12 3875988
13 3875993
14 3875998
15 3876003
16 1333
17 1339
18 1345
19 1351
20 1357
21 1363

List of values

[1, 3, 5, 155, 158, 161, 111, 115, 119, 123, 3875983, 3875988, 3875993, 3875998, 3876003, 1333, 1339, 1345, 1351, 1357, 1363]