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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.

A212853 Number of n X 6 arrays with rows being permutations of 0..5 and no column j greater than column j-1 in all rows.

Table of values

n a(n)
1 1
2 90921
3 179781181
4 191740223841
5 164481310134301
6 128645361626874561
7 96426023622482278621
8 70816637331790329140481
9 51492108377805402906874141
10 37256471170472317193421713601
11 26890352949868734582700237312861

List of values

[1, 90921, 179781181, 191740223841, 164481310134301, 128645361626874561, 96426023622482278621, 70816637331790329140481, 51492108377805402906874141, 37256471170472317193421713601, 26890352949868734582700237312861]

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

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