The OEIS mourns the passing of Jim Simons and is grateful to the Simons Foundation for its support of research in many branches of science, including the OEIS.
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!)
A209500 Number of nX5 0..4 arrays with every 2X2 subblock containing exactly one value repeat, and new values 0..4 introduced in row major order 1
52, 9393, 3268686, 1165032679, 416022303027, 148562491090605, 53052739133301878, 18945498248887912305, 6765569715455974117306, 2416032108072507755319229, 862781914811855377693247204 (list; graph; refs; listen; history; text; internal format)
OFFSET
1,1
COMMENTS
Column 5 of A209503
LINKS
FORMULA
Empirical: a(n) = 477*a(n-1) -39288*a(n-2) -2260566*a(n-3) +384983381*a(n-4) -7839029495*a(n-5) -822053991299*a(n-6) +43393443747057*a(n-7) -53028569481265*a(n-8) -43276863451172253*a(n-9) +861144708089830407*a(n-10) +12560105152201255943*a(n-11) -585547801427750429166*a(n-12) +1844814503928137349186*a(n-13) +169864312213397374809277*a(n-14) -1973425862832147661396693*a(n-15) -22712149774470250087869011*a(n-16) +523193464190926642340571533*a(n-17) +441660411868197024689408971*a(n-18) -72399044493040737831695861121*a(n-19) +297551907214542585886034744663*a(n-20) +5713832787499212458827821059861*a(n-21) -46623259772377465885556624035474*a(n-22) -237243127369110412124411695755424*a(n-23) +3524288981199833800362989098628637*a(n-24) +2017734872801406397171062873724219*a(n-25) -156854633713526170888417297289745006*a(n-26) +288740996321513734985376260993770412*a(n-27) +4248512257074452536352894145685116586*a(n-28) -15558777700629399566840752611585815096*a(n-29) -67069738645589682614836431998415986788*a(n-30) +391870580432283425810055509088818912984*a(n-31) +490477395685384136760468327177713204016*a(n-32) -5697674243306888319078564075420176168448*a(n-33) +1361972893213400216153081399915764209600*a(n-34) +49110417732470688323529968632616447403744*a(n-35) -57738853379778133440382246813990370347872*a(n-36) -239856563637438171277726574554616022449088*a(n-37) +473017651642156450864795051620927552310080*a(n-38) +565918982815415026472879163566265178445952*a(n-39) -1819274946494505618865129339183971184558080*a(n-40) -226770607406789393605631461901849446354176*a(n-41) +3439734464827697349267449602775539202958336*a(n-42) -1296196371235359346225463517905877093691392*a(n-43) -3102116320122327741128067294181852703551488*a(n-44) +2098262472225405871792913745858951958351872*a(n-45) +1180187397994592582735155882747328524566528*a(n-46) -1184748819500496796930575454944900028465152*a(n-47) -79179660215887860751640606150050469117952*a(n-48) +239377682403623686315699650654596059103232*a(n-49) -28581873174380158870112209651115589894144*a(n-50) -7808363148432063893510398863396858494976*a(n-51) for n>52
EXAMPLE
Some.solutions.for.n=4
..0..0..0..1..1....0..0..0..1..0....0..0..0..1..2....0..0..1..2..1
..1..2..3..0..4....1..2..3..1..4....1..2..3..3..1....1..2..0..0..1
..0..0..2..3..0....0..0..2..1..0....0..0..0..2..2....0..0..3..2..1
..1..2..3..4..3....1..2..1..0..2....1..2..3..0..4....1..2..2..1..3
CROSSREFS
Sequence in context: A306283 A219565 A294507 * A093252 A251990 A209741
KEYWORD
nonn
AUTHOR
R. H. Hardin Mar 09 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 May 14 11:10 EDT 2024. Contains 372532 sequences. (Running on oeis4.)