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 A251679 Number of (n+2)X(5+2) 0..2 arrays with no row, column, diagonal or antidiagonal in any 3X3 subblock summing to 2 or 4 1
 5151, 13031, 54523, 264983, 1374165, 7229485, 38111915, 201286237, 1064712861, 5635265205, 29825486345, 157850862859, 835509700715, 4422802653901, 23412470736607, 123932983436039, 656034364529441, 3472740407108381 (list; graph; refs; listen; history; text; internal format)
 OFFSET 1,1 COMMENTS Column 5 of A251682 LINKS R. H. Hardin, Table of n, a(n) for n = 1..210 R. H. Hardin, Empirical recurrence of order 89 FORMULA Empirical recurrence of order 89 (see link above) EXAMPLE Some solutions for n=3 ..1..0..2..1..2..2..1....2..2..2..2..2..2..2....2..1..0..0..0..0..0 ..2..2..1..2..2..1..2....2..2..1..2..2..2..1....2..1..0..0..1..0..0 ..2..1..2..2..1..2..2....1..2..2..2..2..2..2....2..1..0..0..0..0..0 ..1..2..2..1..2..2..2....2..2..2..1..2..2..2....2..1..0..0..0..0..0 ..2..2..1..2..2..2..2....2..1..2..2..2..1..2....2..1..0..0..1..0..0 CROSSREFS Sequence in context: A188338 A213701 A224462 * A151628 A210400 A073585 Adjacent sequences:  A251676 A251677 A251678 * A251680 A251681 A251682 KEYWORD nonn AUTHOR R. H. Hardin, Dec 06 2014 STATUS approved

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Last modified April 17 05:36 EDT 2021. Contains 343059 sequences. (Running on oeis4.)