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

 Hints (Greetings from The On-Line Encyclopedia of Integer Sequences!)
 A279711 Number of 4Xn 0..1 arrays with no element equal to a strict majority of its horizontal and antidiagonal neighbors and with new values introduced in order 0 sequentially upwards. 1
 8, 13, 42, 125, 385, 1195, 3751, 11823, 37385, 118390, 375114, 1188640, 3766483, 11934903, 37818803, 119840838, 379760607, 1203429425, 3813594984, 12085090793, 38297085876, 121361690893, 384589567332, 1218746480798, 3862151137416 (list; graph; refs; listen; history; text; internal format)
 OFFSET 1,1 COMMENTS Row 4 of A279709. LINKS R. H. Hardin, Table of n, a(n) for n = 1..210 FORMULA Empirical: a(n) = 8*a(n-1) -24*a(n-2) +31*a(n-3) +2*a(n-4) -66*a(n-5) +96*a(n-6) -50*a(n-7) -14*a(n-8) -18*a(n-9) +77*a(n-10) +32*a(n-11) -243*a(n-12) +257*a(n-13) +22*a(n-14) -117*a(n-15) +3*a(n-16) -28*a(n-17) +17*a(n-18) +7*a(n-19) +5*a(n-20) +3*a(n-21) +a(n-23) for n>25 EXAMPLE Some solutions for n=4 ..0..1..0..0. .0..1..1..0. .0..1..0..1. .0..1..0..1. .0..1..0..1 ..0..1..1..0. .0..0..1..0. .0..1..1..0. .0..1..0..1. .0..1..0..0 ..0..0..1..1. .1..0..0..1. .0..0..0..1. .1..0..0..1. .0..1..1..0 ..1..0..0..1. .0..1..0..1. .1..1..0..1. .1..1..0..1. .1..0..1..0 CROSSREFS Cf. A279709. Sequence in context: A039298 A360790 A218627 * A043121 A043901 A359553 Adjacent sequences: A279708 A279709 A279710 * A279712 A279713 A279714 KEYWORD nonn AUTHOR R. H. Hardin, Dec 17 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.

Last modified March 23 16:16 EDT 2023. Contains 361445 sequences. (Running on oeis4.)