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.

A278310 Numbers m such that T(m) + 3*T(m+1) is a square, where T = A000217.

Table of values

n a(n)
1 3
2 143
3 4899
4 166463
5 5654883
6 192099599
7 6525731523
8 221682772223
9 7530688524099
10 255821727047183
11 8690408031080163
12 295218051329678399
13 10028723337177985443
14 340681375412721826703
15 11573138040695364122499
16 393146012008229658338303
17 13355391270239113019379843

List of values

[3, 143, 4899, 166463, 5654883, 192099599, 6525731523, 221682772223, 7530688524099, 255821727047183, 8690408031080163, 295218051329678399, 10028723337177985443, 340681375412721826703, 11573138040695364122499, 393146012008229658338303, 13355391270239113019379843]

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

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