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.

A201499 Number of n X n 0..1 arrays with every row and column running average nondecreasing rightwards and downwards, and the number of instances of each value within one of each other.

Original entry on oeis.org

2, 2, 6, 8, 40, 58, 338, 526, 3334, 5448, 36168, 61108, 417920, 723354, 5054148, 8908546, 63260780, 113093022, 813360930, 1470597342, 10685501398, 19499227828, 142885700222, 262754984020, 1939096937920, 3589093760726, 26647143177214
Offset: 1

Views

Author

R. H. Hardin Dec 02 2011

Keywords

Comments

Diagonal of A201503

Examples

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