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.

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A266469 Number of n X 7 binary arrays with rows and columns lexicographically nondecreasing and column sums nonincreasing.

Original entry on oeis.org

2, 9, 52, 463, 5371, 77320, 1231170, 20115063, 319006954, 4768598707, 66353854322, 856330630443, 10262183989448
Offset: 1

Views

Author

R. H. Hardin, Dec 29 2015

Keywords

Comments

Column 7 of A266470.

Examples

			Some solutions for n=4
..0..0..0..0..0..0..0....0..0..0..1..1..1..1....0..0..0..0..0..0..0
..0..0..0..0..0..0..0....0..1..1..0..0..0..0....0..0..0..0..0..0..1
..0..0..0..0..0..0..1....1..0..0..1..1..1..1....0..0..0..1..1..1..0
..1..1..1..1..1..1..0....1..1..1..0..0..0..0....1..1..1..0..0..0..0

Crossrefs

Cf. A266470.
Previous Showing 11-11 of 11 results.

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