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.

A201986 Number of nX4 zero-sum -3..3 arrays with rows and columns lexicographically nondecreasing.

Table of values

n a(n)
1 18
2 14107
3 11648559
4 7375608084
5 3674187761233
6 1507315600099908
7 526500713340421071
8 160321266022658991751
9 43304255513243305231273
10 10515069913569825177115136
11 2319701107323309166913311672

List of values

[18, 14107, 11648559, 7375608084, 3674187761233, 1507315600099908, 526500713340421071, 160321266022658991751, 43304255513243305231273, 10515069913569825177115136, 2319701107323309166913311672]