A230790 Number of (n+3)X(2+3) 0..3 arrays x(i,j) with each element diagonally or antidiagonally next to at least one element with value (x(i,j)+1) mod 4, and upper left element zero

1024, 32912, 2096704, 84019184, 3164737536, 128788339184, 5240912804416, 210666866507312, 8485631595430144, 342396531530004720, 13806626781819210304, 556634631310631742384, 22444891375792627713024

Offset

1,1

Comments

Column 2 of A230796

Links

R. H. Hardin, Table of n, a(n) for n = 1..210

R. H. Hardin, Empirical recurrence of order 64

Formula

Empirical recurrence of order 64 (see link above)

Example

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

Crossrefs

Sequence in context: A344306 A205349 A016805 * A231843 A223965 A232960

Adjacent sequences: A230787 A230788 A230789 * A230791 A230792 A230793

Keyword

nonn

Author

R. H. Hardin, Oct 30 2013

Status

approved