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

 Hints (Greetings from The On-Line Encyclopedia of Integer Sequences!)
 A224595 Number of (n+7)X13 0..1 matrices with each 8X8 subblock idempotent 1
 877647, 110868, 105212, 114337, 122713, 128682, 132787, 135622, 137700, 157201, 193783, 243309, 301667, 365687, 433384, 503411, 574992, 665573, 792178, 967802, 1201330, 1498385, 1862641, 2296415, 2801260, 3396151, 4117085, 5013150, 6142255 (list; graph; refs; listen; history; text; internal format)
 OFFSET 1,1 COMMENTS Column 6 of A224597 LINKS R. H. Hardin, Table of n, a(n) for n = 1..52 FORMULA Empirical: a(n) = 3*a(n-1) -4*a(n-2) +5*a(n-3) -7*a(n-4) +8*a(n-5) -8*a(n-6) +8*a(n-7) -6*a(n-8) +3*a(n-9) -2*a(n-10) +3*a(n-12) -4*a(n-13) +4*a(n-14) -4*a(n-15) +3*a(n-16) -2*a(n-17) +2*a(n-18) -a(n-19) for n>25 EXAMPLE Some solutions for n=3 ..1..0..0..0..0..0..0..0..0..0..0..0..1 ..1..0..0..0..0..0..0..0..0..0..0..0..0 ..1..0..0..0..0..0..0..0..0..0..0..0..0 ..1..0..0..0..0..0..0..0..0..0..0..0..1 ..0..0..0..0..0..0..0..0..0..0..0..0..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..1 ..1..0..0..0..0..0..0..0..0..0..0..0..1 ..0..0..0..0..0..0..0..0..0..0..0..0..1 ..1..0..0..0..0..0..0..0..0..0..0..0..1 CROSSREFS Sequence in context: A254421 A254428 A271264 * A254387 A254394 A253982 Adjacent sequences: A224592 A224593 A224594 * A224596 A224597 A224598 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.

Last modified May 19 06:35 EDT 2024. Contains 372666 sequences. (Running on oeis4.)