login
The OEIS is supported by the many generous donors to the OEIS Foundation.

 

Logo
Hints
(Greetings from The On-Line Encyclopedia of Integer Sequences!)
A206363 Number of (n+1)X4 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
1990, 294983, 47155911, 7524874363, 1197873588223, 190817902385518, 30394990249581088, 4841446696348626725, 771174575648253890057, 122837158924767156108471, 19566207413690834344037159 (list; graph; refs; listen; history; text; internal format)
OFFSET
1,1
COMMENTS
Column 3 of A206366
LINKS
FORMULA
Empirical: a(n) = 156*a(n-1) -1413*a(n-2) +329106*a(n-3) -4154064*a(n-4) +186840087*a(n-5) -8192746333*a(n-6) +38256252573*a(n-7) +1524493608637*a(n-8) -14650534294939*a(n-9) -70737673568729*a(n-10) +1266959328258358*a(n-11) +1305358080627014*a(n-12) -57723840510391912*a(n-13) -143071119831815622*a(n-14) +3140645711858022401*a(n-15) -1305066715344231552*a(n-16) -65229690816553397761*a(n-17) +75497968365687199186*a(n-18) +631869450113827724563*a(n-19) -1008205063597125759852*a(n-20) -17929402222374322998733*a(n-21) +122327054387103519125111*a(n-22) +464725801000735333183598*a(n-23) -2465472225898448207231288*a(n-24) -156547751115906706500371*a(n-25) -30698647352213321127103802*a(n-26) -169321220443896083823109141*a(n-27) +1024989169658009258328131623*a(n-28) -446176112972097179334633604*a(n-29) +3438194787300589043171190374*a(n-30) +53754059779526411972793401792*a(n-31) -99297157343228786341710316519*a(n-32) -186348746017147456654042037043*a(n-33) -980511766094394050160296684141*a(n-34) -3860545763955432766686121360048*a(n-35) +1800658275478467059082507907630*a(n-36) +5683480556604232205159834488193*a(n-37) +84436913072511515434531261294259*a(n-38) +201013788648537453968005814761691*a(n-39) +317143053951493206349513023222952*a(n-40) +465414406361574321457329730858706*a(n-41) -1774838715783548998747399345859554*a(n-42) -5386485181143264155006607744277576*a(n-43) -18430124632356464460977373517297142*a(n-44) -23176378783105043807857486557822660*a(n-45) -20265402938979906164077466135001889*a(n-46) +72214616284983713771584870800105104*a(n-47) +206109451346604589085910677991731511*a(n-48) +295665513674613843340094829344781018*a(n-49) +300995727057338655304477996783095257*a(n-50) -474763553278461043092075823566948470*a(n-51) +954925001289007754801210834954608087*a(n-52) -265048063242935544705538978751136419*a(n-53) +4033613235448021689216936549526879844*a(n-54) +2328665429101220413795440019452500581*a(n-55) +10817496708615259100742210303409406988*a(n-56) +6523544352168070916759371713077465450*a(n-57) -10911703961725738105473020634675713780*a(n-58) -52193695973520841774898350977964973300*a(n-59) -35808642699687643575940299358141412296*a(n-60) -27383986136907950207446881762894898920*a(n-61) -46431458138215326166908082652669157056*a(n-62) -30352758852440647468320897326795394656*a(n-63) +57336456437583528121359131409473443904*a(n-64) +256113389527547637754347868711690622592*a(n-65) +16050973371501943567388377553943270400*a(n-66) -462290927134426426834247835984190160896*a(n-67) +124450859935497506530885347185361995776*a(n-68) +545570025581283201732334566502703677440*a(n-69) -494641588038546120478581739110369755136*a(n-70) -262694706278462839542389619331891789824*a(n-71) +534467659856189181706516380893280731136*a(n-72) -114871871918666790476160929116685598720*a(n-73) -204484152643211333062197003990866067456*a(n-74) +216450190885624277290287175845323735040*a(n-75) -22914412904956493121107620055312498688*a(n-76) -100566381423434781578461610471596228608*a(n-77) +43503459079164257382178958052251664384*a(n-78) +7292513991812167577018793791078793216*a(n-79) -15644270164788059197341510897915396096*a(n-80) +8052695477492562845196427289715277824*a(n-81) +3143716862083141634766200203043143680*a(n-82) -2495101350879765737743335206525337600*a(n-83) -320589669443445488711333169856512000*a(n-84) +234029489504704351561662081269760000*a(n-85)
EXAMPLE
Some solutions for n=4
..0..0..0..0....0..1..1..0....0..0..0..0....0..0..0..1....0..0..1..1
..1..2..1..2....1..1..2..3....1..2..1..2....1..0..1..0....2..1..2..0
..0..1..2..0....1..0..1..3....0..0..0..0....2..1..2..0....2..0..3..0
..3..3..0..1....0..1..1..2....3..1..2..3....1..3..2..3....0..2..1..1
..0..1..2..1....1..3..3..0....1..0..3..2....1..3..0..2....0..2..1..0
CROSSREFS
Sequence in context: A107527 A034228 A028516 * A233712 A223366 A034588
KEYWORD
nonn
AUTHOR
R. H. Hardin Feb 06 2012
STATUS
approved

Lookup | Welcome | Wiki | Register | Music | Plot 2 | Demos | Index | Browse | More | WebCam
Contribute new seq. or comment | Format | Style Sheet | Transforms | Superseeker | Recents
The OEIS Community | Maintained by The OEIS Foundation Inc.

License Agreements, Terms of Use, Privacy Policy. .

Last modified April 25 09:38 EDT 2024. Contains 371967 sequences. (Running on oeis4.)