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.

A224171 Number of n X 6 0..3 arrays with rows, diagonals and antidiagonals unimodal and columns nondecreasing.

Table of values

n a(n)
1 610
2 52591
3 1253770
4 15925611
5 143558572
6 1038484760
7 6360047093
8 33901838632
9 160168789130
10 680269560125
11 2628521964178
12 9335303943077
13 30746296739238
14 94635507313740
15 274045375789233
16 750986358734170
17 1957473961121912
18 4874764357410065
19 11644219526875714

List of values

[610, 52591, 1253770, 15925611, 143558572, 1038484760, 6360047093, 33901838632, 160168789130, 680269560125, 2628521964178, 9335303943077, 30746296739238, 94635507313740, 274045375789233, 750986358734170, 1957473961121912, 4874764357410065, 11644219526875714]