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.

A200983 Number of n X n 0..4 arrays with every row and column nondecreasing rightwards and downwards, and the number of instances of each value within one of each other.

Table of values

n a(n)
1 5
2 10
3 92
4 1225
5 4919
6 752271
7 29555346
8 1278883650
9 65182166083
10 731587297275

List of values

[5, 10, 92, 1225, 4919, 752271, 29555346, 1278883650, 65182166083, 731587297275]