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A210084 Number of (n+1)X7 0..3 arrays containing all values 0..3 with every 2X2 subblock having one, three or four distinct values, and new values 0..3 introduced in row major order 1
1239185, 2860160370, 6412474476465, 14400521616297866, 32333381450807878715, 72599208478326114502304, 163009108891704227787040790, 366009150671326795521231043797, 821811105127510823800558776457203 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,1

COMMENTS

Column 6 of A210086

LINKS

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

EXAMPLE

Some solutions for n=4

..0..0..0..0..0..0..1....0..1..2..2..1..0..0....0..0..1..2..0..3..3

..2..1..2..1..3..1..3....3..0..0..1..3..1..3....1..2..0..3..0..1..0

..3..1..3..3..0..1..0....3..1..2..0..0..2..1....2..0..3..1..3..2..3

..0..1..0..1..1..2..3....1..0..1..0..0..1..0....0..1..3..0..3..0..1

..3..0..3..1..1..3..0....2..3..2..1..2..0..3....0..2..2..3..1..0..2

CROSSREFS

Sequence in context: A156113 A118900 A206019 * A212489 A290250 A251156

Adjacent sequences:  A210081 A210082 A210083 * A210085 A210086 A210087

KEYWORD

nonn

AUTHOR

R. H. Hardin Mar 17 2012

STATUS

approved

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Last modified October 25 01:40 EDT 2021. Contains 348233 sequences. (Running on oeis4.)