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!)
A279577 Number of nX5 0..2 arrays with no element equal to a strict majority of its horizontal and antidiagonal neighbors, with the exception of exactly one element, and with new values introduced in order 0 sequentially upwards. 1
14, 2212, 406200, 72177144, 12490527012, 2121871518232, 355347019237332, 58835479020749472, 9651371153656703340, 1571020467270689259744, 254061714988118013529260, 40857315122339646469304952 (list; graph; refs; listen; history; text; internal format)
OFFSET
1,1
COMMENTS
Column 5 of A279580.
LINKS
FORMULA
Empirical: a(n) = 382*a(n-1) -50305*a(n-2) +2871200*a(n-3) -94085542*a(n-4) +2033673964*a(n-5) -31323134438*a(n-6) +360351518936*a(n-7) -3191787274585*a(n-8) +22204430755670*a(n-9) -122891765830585*a(n-10) +545254903490696*a(n-11) -1946328692624160*a(n-12) +5591111591184704*a(n-13) -12896297812731328*a(n-14) +23789745353433088*a(n-15) -34932967814302720*a(n-16) +40652750586830848*a(n-17) -37360892198162432*a(n-18) +27037443205365760*a(n-19) -15357367442931712*a(n-20) +6809669313757184*a(n-21) -2333827410165760*a(n-22) +607305599025152*a(n-23) -116364308119552*a(n-24) +15575094919168*a(n-25) -1325668499456*a(n-26) +60129542144*a(n-27) -1073741824*a(n-28) for n>29
EXAMPLE
Some solutions for n=2
..0..1..0..1..0. .0..1..2..0..1. .0..1..0..2..0. .0..1..2..2..2
..0..2..0..2..2. .2..2..1..2..1. .2..1..1..1..2. .2..1..2..0..2
CROSSREFS
Cf. A279580.
Sequence in context: A134814 A258487 A206753 * A015515 A183580 A080690
KEYWORD
nonn
AUTHOR
R. H. Hardin, Dec 15 2016
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 June 14 07:57 EDT 2024. Contains 373393 sequences. (Running on oeis4.)