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.

A350423 a(n) is the smallest n-gonal number which can be represented as the sum of n distinct nonzero n-gonal numbers in exactly n ways, or -1 if none exists.

Table of values

n a(n)
3 190
4 289
5 330
6 561

List of values

[190, 289, 330, 561]

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

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