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.

A259166 Positive heptagonal numbers (A000566) that are hexagonal numbers (A000384) divided by 2.

Table of values

n a(n)
1 189
2 393298308
3 817809556618215
4 1700522115268371779430
5 3536001066647854270462804353
6 7352626249945315029422809413582264
7 15288771624335254149144023973574781130123
8 31790890742313650111822470662710981230881538170

List of values

[189, 393298308, 817809556618215, 1700522115268371779430, 3536001066647854270462804353, 7352626249945315029422809413582264, 15288771624335254149144023973574781130123, 31790890742313650111822470662710981230881538170]

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

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