A234180 Number of (n+1)X(4+1) 0..5 arrays with every 2X2 subblock having the absolute values of all six edge and diagonal differences no larger than 1.

10120, 392664, 15322566, 604124712, 23888919458, 946183426722, 37514052801518, 1488477618052368, 59095926803262212, 2347453327563031374, 93288365373668423336, 3708702306984452959906, 147488317372296445028922

Offset

1,1

Comments

Column 4 of A234184

Links

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

R. H. Hardin, Empirical recurrence of order 60

Formula

Empirical recurrence of order 60 (see link above)

Example

Some solutions for n=1
..4..4..4..3..2....4..3..4..3..3....4..4..4..4..5....2..1..2..2..3
..4..3..4..3..3....3..3..3..3..2....4..3..4..4..5....1..2..1..2..2

Crossrefs

Sequence in context: A161786 A157711 A159863 * A054037 A289856 A023066

Adjacent sequences: A234177 A234178 A234179 * A234181 A234182 A234183

Keyword

nonn

Author

R. H. Hardin, Dec 20 2013

Status

approved