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.

A278629 Number of nX3 0..2 arrays with rows in nondecreasing lexicographic order and columns in nonincreasing lexicographic order, but with exactly two mistakes.

Table of values

n a(n)
1 1
2 285
3 10824
4 234484
5 3739008
6 48592635
7 541463431
8 5325263364
9 47098291840
10 379621129293
11 2817194942225
12 19407777240447
13 124964309624036
14 756392815286668
15 4325156175914066
16 23464134450391209
17 121221027131246039

List of values

[1, 285, 10824, 234484, 3739008, 48592635, 541463431, 5325263364, 47098291840, 379621129293, 2817194942225, 19407777240447, 124964309624036, 756392815286668, 4325156175914066, 23464134450391209, 121221027131246039]