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!)
A224594 Number of (n+7)X12 0..1 matrices with each 8X8 subblock idempotent 1
891884, 107496, 99428, 108764, 116744, 122713, 126820, 129646, 131588, 150819, 187014, 236085, 293902, 357451, 424560, 494058, 565037, 654785, 780204, 954187, 1185430, 1479852, 1840901, 2270907, 2771411, 3361205, 4075790, 4963927, 6082850 (list; graph; refs; listen; history; text; internal format)
OFFSET
1,1
COMMENTS
Column 5 of A224597
LINKS
FORMULA
Empirical: a(n) = 3*a(n-1) -4*a(n-2) +4*a(n-3) -4*a(n-4) +4*a(n-5) -3*a(n-6) +a(n-7) +2*a(n-8) -5*a(n-9) +6*a(n-10) -6*a(n-11) +6*a(n-12) -6*a(n-13) +4*a(n-14) -a(n-15) -a(n-16) +2*a(n-17) -2*a(n-18) +2*a(n-19) -2*a(n-20) +2*a(n-21) -a(n-22) for n>28
EXAMPLE
Some solutions for n=3
..1..1..1..1..1..1..1..1..1..0..0..0....1..1..1..1..1..1..0..1..0..0..0..0
..0..0..0..0..0..0..0..0..0..0..0..0....0..0..0..0..0..0..0..0..0..0..0..0
..0..0..0..0..0..0..0..0..0..0..0..0....0..0..0..0..0..0..0..0..0..0..0..0
..0..0..0..0..0..0..0..0..0..0..0..0....0..0..0..0..0..0..0..0..0..0..0..0
..0..0..0..0..0..0..0..0..0..0..0..0....0..0..0..0..0..0..0..0..0..0..0..0
..0..0..0..0..0..0..0..0..0..0..0..0....0..0..0..0..0..0..0..0..0..0..0..0
..0..0..0..0..0..0..0..0..0..0..0..0....0..0..0..0..0..0..0..0..0..0..0..0
..0..0..0..0..0..0..0..0..0..0..0..0....0..0..0..0..0..0..0..0..0..0..0..0
..1..0..0..1..0..0..1..1..1..1..1..1....1..1..1..0..1..0..1..1..1..1..1..1
..0..0..0..0..0..0..0..0..0..0..0..0....0..0..0..0..0..0..0..0..0..0..0..0
CROSSREFS
Sequence in context: A250571 A092016 A269219 * A105379 A186792 A345607
KEYWORD
nonn
AUTHOR
R. H. Hardin Apr 11 2013
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 16 19:52 EDT 2024. Contains 373432 sequences. (Running on oeis4.)