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A232293 Number of nX6 0..2 arrays with every 0 next to a 1 and every 1 next to a 2 horizontally or antidiagonally 2
73, 22387, 5546705, 1370434057, 339565321435, 84130295708483, 20843967523877175, 5164265865545602229, 1279489656786836660869, 317004164359535173194891, 78540408423251444575629653 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,1

COMMENTS

Column 6 of A232295

LINKS

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

FORMULA

Empirical: a(n) = 207*a(n-1) +9931*a(n-2) +49471*a(n-3) -1970447*a(n-4) -6338773*a(n-5) +175960715*a(n-6) -920603783*a(n-7) -9449384612*a(n-8) +145531618442*a(n-9) -242636870053*a(n-10) -2073861584922*a(n-11) +3341837975848*a(n-12) +58042789695847*a(n-13) -343777801220144*a(n-14) +882129513880321*a(n-15) -1108971977347717*a(n-16) +277063354526591*a(n-17) +921996939442577*a(n-18) -705353078988810*a(n-19) -550826901103545*a(n-20) +699774378854433*a(n-21) +136394086403249*a(n-22) -337136081814506*a(n-23) -23122145009777*a(n-24) +111483169768110*a(n-25) +4688253045824*a(n-26) -24580209914500*a(n-27) -2718319844797*a(n-28) +3515863975276*a(n-29) +809432679924*a(n-30) -285686783391*a(n-31) -152692917012*a(n-32) -22226924736*a(n-33) +778483008*a(n-34) +630478080*a(n-35) +74151936*a(n-36) +2985984*a(n-37) for n>38

EXAMPLE

Some solutions for n=2

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

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

CROSSREFS

Sequence in context: A091757 A070531 A274591 * A232366 A183490 A232307

Adjacent sequences:  A232290 A232291 A232292 * A232294 A232295 A232296

KEYWORD

nonn

AUTHOR

R. H. Hardin, Nov 22 2013

STATUS

approved

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Last modified January 25 15:03 EST 2021. Contains 340416 sequences. (Running on oeis4.)