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.

A157199 The terms of this sequence are the first several terms of tcW(r,r-1,r+1), where r=2,3,4,.... Informally, the function tcW is like the multi-color Van der Waerden function W, except that the second parameter determines the number of colors found in the target subsequence. See links for definition.

Table of values

n a(n)
2 9
3 13
4 22
5 26
6 44
7 50
8 25
9 28

List of values

[9, 13, 22, 26, 44, 50, 25, 28]

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

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