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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 1
10120, 392664, 15322566, 604124712, 23888919458, 946183426722, 37514052801518, 1488477618052368, 59095926803262212, 2347453327563031374, 93288365373668423336, 3708702306984452959906, 147488317372296445028922 (list; graph; refs; listen; history; text; internal format)
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

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Last modified May 25 11:27 EDT 2020. Contains 334592 sequences. (Running on oeis4.)