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A210170 Number of (n+1)X5 0..3 arrays containing all values 0..3 with every 2X2 subblock having two or four distinct values, and new values 0..3 introduced in row major order 1
910, 48577, 2266901, 101095392, 4397691548, 188568419989, 8015152545175, 338864385855724, 14279316795033022, 600493383399648691, 25221353246754934437, 1058515711497044756258, 44404162219437478885636 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,1

COMMENTS

Column 4 of A210174

LINKS

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

FORMULA

Empirical: a(n) = 178*a(n-1) -13639*a(n-2) +585669*a(n-3) -15110479*a(n-4) +221328025*a(n-5) -1030389947*a(n-6) -23820083390*a(n-7) +477504342825*a(n-8) -2509663214619*a(n-9) -24472028878451*a(n-10) +417691345817717*a(n-11) -1222388338063987*a(n-12) -18197513182792945*a(n-13) +165454588310388750*a(n-14) +25444196886742418*a(n-15) -6684504562675307749*a(n-16) +25133638157762717483*a(n-17) +113876529839989087287*a(n-18) -1022726422763397052474*a(n-19) +269937210882039817850*a(n-20) +20194249640879026313001*a(n-21) -52341409575728083175190*a(n-22) -209288348133720892914421*a(n-23) +1148575343743897601604004*a(n-24) +544529750699483666704491*a(n-25) -13619706975762504539954912*a(n-26) +15444688983590115187116965*a(n-27) +96951666953939832578799841*a(n-28) -245978160134660556566688406*a(n-29) -367743896109346002511189242*a(n-30) +1908908757907878374619856580*a(n-31) -10329534556894589407683712*a(n-32) -9084248649177301427216583120*a(n-33) +8241815740793677802469500224*a(n-34) +26768580893543865696338439168*a(n-35) -47790037059122228446320530944*a(n-36) -41925941441704652395149925376*a(n-37) +147914365542231452912813203456*a(n-38) -729028442574963303193543680*a(n-39) -280417789286745736084686917632*a(n-40) +150291035131814590858709061632*a(n-41) +324105415013250379405924556800*a(n-42) -327734086460115685241612222464*a(n-43) -202939535056346000819524501504*a(n-44) +363565277610835566468364828672*a(n-45) +29441510732450663410425266176*a(n-46) -234015922152443573648794845184*a(n-47) +46805162841574867718658064384*a(n-48) +87391556481961177983585615872*a(n-49) -33582933508203936523858477056*a(n-50) -17854267916454769900549832704*a(n-51) +9787876252146114030892744704*a(n-52) +1720259459458435914663985152*a(n-53) -1398263618359864654055866368*a(n-54) -33227260180340543292702720*a(n-55) +94744714590434362971389952*a(n-56) -5260261364850973904732160*a(n-57) -2391544689301405921443840*a(n-58) +252360783544238840217600*a(n-59)

EXAMPLE

Some solutions for n=4

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

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

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

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

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

CROSSREFS

Sequence in context: A332190 A015278 A352441 * A068261 A119520 A145646

Adjacent sequences:  A210167 A210168 A210169 * A210171 A210172 A210173

KEYWORD

nonn

AUTHOR

R. H. Hardin Mar 18 2012

STATUS

approved

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Last modified July 6 11:37 EDT 2022. Contains 355110 sequences. (Running on oeis4.)