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.

A223991 Number of 6Xn 0..3 arrays with rows unimodal and columns nondecreasing.

Table of values

n a(n)
1 84
2 7056
3 325120
4 9647292
5 204647416
6 3322756326
7 43307637038
8 469239396496
9 4340915844892
10 35013234463686
11 250416999823220
12 1610131956940138
13 9414450936518133
14 50540930874984955
15 251164546472066722

List of values

[84, 7056, 325120, 9647292, 204647416, 3322756326, 43307637038, 469239396496, 4340915844892, 35013234463686, 250416999823220, 1610131956940138, 9414450936518133, 50540930874984955, 251164546472066722]