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A210092
Number of (n+1)X6 0..2 arrays containing all values 0..2 with every 2X2 subblock having one or two distinct values, and new values 0..2 introduced in row major order
1
4230, 348621, 29356228, 2488428258, 209465946364, 17494242506253, 1451091848955678, 119700187465721716, 9831330547975913420, 804757041113681008488, 65701936363585553149727, 5353087631363517206263772
OFFSET
1,1
COMMENTS
Column 5 of A210095
LINKS
FORMULA
Empirical: a(n) = 202*a(n-1) -14123*a(n-2) +380572*a(n-3) -1438616*a(n-4) -99274709*a(n-5) +1155724795*a(n-6) +8643300216*a(n-7) -166589849398*a(n-8) -274497031426*a(n-9) +11515136131550*a(n-10) -1832292455645*a(n-11) -457188662253503*a(n-12) +336001687563753*a(n-13) +11327503957451248*a(n-14) -9113460943291491*a(n-15) -183665203305943843*a(n-16) +123571425473428963*a(n-17) +2003525661152721986*a(n-18) -990601469663807369*a(n-19) -14981189128638351022*a(n-20) +5154521066328382780*a(n-21) +78057653461845959313*a(n-22) -19250224843040180931*a(n-23) -287532733033011400278*a(n-24) +58417217021953987815*a(n-25) +757126134053256036905*a(n-26) -155693459113620706806*a(n-27) -1433722830312214278540*a(n-28) +348602065891707730366*a(n-29) +1950547820706182800257*a(n-30) -595414185159687071974*a(n-31) -1887300745304252275773*a(n-32) +725686784875169133118*a(n-33) +1269686648151447607271*a(n-34) -608745622735310244088*a(n-35) -568946968704783843248*a(n-36) +341945871757434843792*a(n-37) +155435605971618737334*a(n-38) -124110444593762302930*a(n-39) -19948113914003483822*a(n-40) +27435918496367785268*a(n-41) -714926210446370056*a(n-42) -3322485605775126312*a(n-43) +498971087766745072*a(n-44) +180395158795278272*a(n-45) -44929945871997536*a(n-46) -3093399295952128*a(n-47) +1451280469739136*a(n-48) -24128771207680*a(n-49) -15867004438528*a(n-50) +437469315072*a(n-51) +60523806720*a(n-52)
EXAMPLE
Some solutions for n=4
..0..0..1..2..1..0....0..1..0..2..1..2....0..1..0..0..2..0....0..1..2..2..1..2
..1..0..1..2..1..0....0..1..0..2..1..1....0..0..0..2..0..0....0..1..1..1..1..1
..0..1..1..1..1..1....0..0..0..2..1..0....1..0..2..2..2..0....0..0..0..0..0..0
..0..0..0..0..1..1....0..1..0..2..1..0....1..0..0..2..2..2....1..1..1..1..0..0
..0..1..1..1..1..1....0..1..0..2..1..0....0..1..0..2..2..1....1..2..2..1..0..0
CROSSREFS
Sequence in context: A236725 A345580 A345837 * A035899 A035783 A108007
KEYWORD
nonn
AUTHOR
R. H. Hardin Mar 17 2012
STATUS
approved