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A206362 Number of (n+1)X3 0..3 arrays with every 2X3 or 3X2 subblock having no more than two equal edges, and new values 0..3 introduced in row major order 1
151, 6329, 294983, 13804578, 643832706, 30049504156, 1402595823865, 65463971182963, 3055453674984819, 142609963970592832, 6656158355663856332, 310668667499188649660, 14500109457714755675679, 676776236342576687653295 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,1

COMMENTS

Column 2 of A206366

LINKS

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

FORMULA

Empirical: a(n) = 45*a(n-1) +16*a(n-2) +3895*a(n-3) -48177*a(n-4) +77462*a(n-5) +110913*a(n-6) +1127659*a(n-7) -4335582*a(n-8) +2941967*a(n-9) -8832158*a(n-10) +22085991*a(n-11) -20203605*a(n-12) +43969692*a(n-13) -43415473*a(n-14) +53063555*a(n-15) -64756263*a(n-16) +19624030*a(n-17) -46916214*a(n-18) +4063848*a(n-19) +972000*a(n-20) +9782208*a(n-21)

EXAMPLE

Some solutions for n=4

..0..0..0....0..0..1....0..1..1....0..0..0....0..0..0....0..1..1....0..1..0

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

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

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

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

CROSSREFS

Sequence in context: A143012 A250375 A060889 * A200934 A174759 A289821

Adjacent sequences:  A206359 A206360 A206361 * A206363 A206364 A206365

KEYWORD

nonn

AUTHOR

R. H. Hardin Feb 06 2012

STATUS

approved

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Last modified April 15 20:40 EDT 2021. Contains 342977 sequences. (Running on oeis4.)