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A206167 Number of (n+1)X7 0..3 arrays with every 2X2 subblock in a row having an equal number of equal diagonal or equal antidiagonal elements, adjacent rows differing in this number, and new values 0..3 introduced in row major order 1
385465, 38016046, 13703317686, 1361622567126, 490998144726398, 48801583349072774, 17594902146494956438, 1749161667350452565814, 630514365621711332095246, 62694035569411089869428342 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,1

COMMENTS

Column 6 of A206169

LINKS

R. H. Hardin, Table of n, a(n) for n = 1..25

EXAMPLE

Some solutions for n=4

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

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

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

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

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

CROSSREFS

Sequence in context: A205759 A205589 A157843 * A206381 A234216 A258686

Adjacent sequences:  A206164 A206165 A206166 * A206168 A206169 A206170

KEYWORD

nonn

AUTHOR

R. H. Hardin Feb 04 2012

STATUS

approved

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Last modified September 23 11:51 EDT 2021. Contains 347612 sequences. (Running on oeis4.)