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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.

A159458 Numbers m such that m^2 divides A159068(m), where A159068(m) = Sum_{k=1..m} binomial(m,k) * gcd(m,k).

Table of values

n a(n)
1 1
2 2
3 3
4 11
5 33
6 309
7 665
8 1461
9 2323
10 6789

List of values

[1, 2, 3, 11, 33, 309, 665, 1461, 2323, 6789]

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

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