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 A256900 Number of (n+2)X(4+2) 0..1 arrays with every 3X3 subblock sum of the two medians of the central row and column plus the two sums of the diagonal and antidiagonal nondecreasing horizontally and vertically 1
 34698, 137381, 721051, 2212280, 4687873, 9831933, 14332984, 24894558, 39386679, 61894886, 96974489, 151773647, 239095657, 367120758, 555977303, 840547925, 1262889781, 1870244703, 2741127912, 3999331686, 5791178973, 8305518851 (list; graph; refs; listen; history; text; internal format)
 OFFSET 1,1 COMMENTS Column 4 of A256904 LINKS R. H. Hardin, Table of n, a(n) for n = 1..210 EXAMPLE Some solutions for n=2 ..0..1..0..0..1..1....0..0..0..0..0..0....0..1..0..0..0..0....0..1..1..1..0..1 ..0..0..0..0..1..0....0..0..0..0..1..0....1..0..0..0..1..0....0..1..0..1..1..0 ..1..0..0..0..1..1....0..0..0..1..1..1....1..0..1..1..1..0....1..1..0..1..1..0 ..1..1..1..1..0..0....0..0..1..1..0..1....0..1..1..0..0..1....1..1..0..1..1..1 CROSSREFS Cf. A256904 Sequence in context: A251448 A259002 A259009 * A236141 A103911 A185472 Adjacent sequences: A256897 A256898 A256899 * A256901 A256902 A256903 KEYWORD nonn AUTHOR R. H. Hardin, Apr 12 2015 STATUS approved

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Last modified June 19 03:10 EDT 2024. Contains 373492 sequences. (Running on oeis4.)