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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.

A278632 Number of nX6 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)
1 357
2 175881
3 48592635
4 11719632199
5 2593097277036
6 521528860552802
7 94782697883923436
8 15624069731088285787
9 2357725621673408985921
10 329332639476242364241409
11 43040255418713805460253898

List of values

[357, 175881, 48592635, 11719632199, 2593097277036, 521528860552802, 94782697883923436, 15624069731088285787, 2357725621673408985921, 329332639476242364241409, 43040255418713805460253898]

Started in 1964 by Neil J. A. Sloane | Maintained by The OEIS Foundation Inc.

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