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A210132 Number of (n+1)X7 0..3 arrays with every 2X2 subblock having one, three or four distinct values, and new values 0..3 introduced in row major order 1
1251951, 2860882075, 6412512897051, 14400523684710903, 32333381562091308913, 72599208484317720843697, 163009108892026883366704088, 366009150671344173445778404394, 821811105127511759822846126226177 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,1

COMMENTS

Column 6 of A210134

LINKS

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

EXAMPLE

Some solutions for n=4

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

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

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

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

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

CROSSREFS

Sequence in context: A212489 A290250 A251156 * A251118 A126174 A186089

Adjacent sequences:  A210129 A210130 A210131 * A210133 A210134 A210135

KEYWORD

nonn

AUTHOR

R. H. Hardin Mar 17 2012

STATUS

approved

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Last modified January 27 15:45 EST 2022. Contains 350607 sequences. (Running on oeis4.)