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.

A278324 Number of nX7 0..1 arrays with rows and columns in lexicographic nondecreasing order but with exactly two mistakes.

Table of values

n a(n)
1 56
2 4991
3 251892
4 11947350
5 570738085
6 26606146271
7 1159826452573
8 46588303100299
9 1741053359883624
10 61687083048618477
11 2105403821298913363
12 69685735738121699248
13 2231675758500253736280
14 68674888544867993485304

List of values

[56, 4991, 251892, 11947350, 570738085, 26606146271, 1159826452573, 46588303100299, 1741053359883624, 61687083048618477, 2105403821298913363, 69685735738121699248, 2231675758500253736280, 68674888544867993485304]