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.

A200581 a(n) = gcd(t(n), t(2*n)), where t = A200218.

Table of values

n a(n)
1 297
2 4456485
3 552604437
4 8291281429233
5 1028119449829329
6 15425912516520681549
7 1912814180168014341405
8 28699879385153403699122169
9 3558786956573202226705490361
10 53396068196303711362892876498613
11 6621116015128616782200943391318373

List of values

[297, 4456485, 552604437, 8291281429233, 1028119449829329, 15425912516520681549, 1912814180168014341405, 28699879385153403699122169, 3558786956573202226705490361, 53396068196303711362892876498613, 6621116015128616782200943391318373]

Started in 1964 by Neil J. A. Sloane | Maintained by The OEIS Foundation Inc.

Content is available under The OEIS End-User License Agreement.