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.

A241053 Number of n X 5 0..3 arrays with no element equal to one plus the sum of elements to its left or zero plus the sum of elements above it or zero plus the sum of the elements diagonally to its northwest or one plus the sum of the elements antidiagonally to its northeast, modulo 4.

Original entry on oeis.org

10, 18, 60, 163, 598, 3411, 11283, 72578, 404421, 2220973, 15323311, 89098530, 555805615, 3439171493, 20036872248, 122952210402, 718794479207, 4313956945052, 26242676909613, 154481099979249, 936900491409907
Offset: 1

Views

Author

R. H. Hardin, Apr 15 2014

Keywords

Examples

			Some solutions for n=4:
..3..3..2..3..3....3..2..3..3..3....3..2..3..3..3....3..3..2..3..2
..2..0..1..1..0....2..1..1..2..2....2..1..1..2..2....2..1..1..0..0
..2..0..0..2..2....2..0..1..2..0....2..0..1..2..0....3..3..2..2..0
..2..0..1..1..3....2..1..3..2..0....2..0..0..2..2....3..2..0..0..3
		

Crossrefs

Column 5 of A241054.