A233641 Number of (n+1) X (5+1) 0..2 arrays with every 2 X 2 subblock having the sum of the squares of the edge differences equal to 2.

4320, 99380, 2118568, 48384788, 1060656512, 24003655980, 531400908604, 11957878063196, 265950544067684, 5965795563741028, 132995605031840160, 2978341581135279648, 66478181781268446932, 1487401749339915136108

Offset

1,1

Comments

Column 5 of A233644.

Links

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

R. H. Hardin, Empirical recurrence of order 66

Formula

Empirical recurrence of order 66 (see link above).

Example

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

Crossrefs

Cf. A233644.

Sequence in context: A145312 A008409 A320729 * A202787 A028384 A107542

Adjacent sequences: A233638 A233639 A233640 * A233642 A233643 A233644

Keyword

nonn

Author

R. H. Hardin, Dec 14 2013

Status

approved