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.

A223872 Number of nX4 0..3 arrays with rows, diagonals and antidiagonals unimodal.

Table of values

n a(n)
1 130
2 16900
3 1336985
4 88682677
5 5941888105
6 411716468431
7 28928809433978
8 2033941972287214
9 142745781634483746
10 10010372252279889400
11 701993937730379495973
12 49234252523359799838831
13 3453202734892638263202801

List of values

[130, 16900, 1336985, 88682677, 5941888105, 411716468431, 28928809433978, 2033941972287214, 142745781634483746, 10010372252279889400, 701993937730379495973, 49234252523359799838831, 3453202734892638263202801]