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 A234862 Number of (n+2)X(1+2) 0..3 arrays with each 3X3 subblock having the sum of its 72 absolute element differences equal to 52, and no adjacent elements equal 1
 2216, 11714, 61954, 326786, 1791552, 9897540, 54119058, 297874488, 1655842138, 9105854856, 50163046756, 278949824936, 1536234456774, 8465287947954, 47047724965648, 259290094145420, 1429038515851044, 7936986520592132 (list; graph; refs; listen; history; text; internal format)
 OFFSET 1,1 COMMENTS Column 1 of A234867 LINKS R. H. Hardin, Table of n, a(n) for n = 1..210 R. H. Hardin, Empirical recurrence of order 70 FORMULA Empirical recurrence of order 70 (see link above) EXAMPLE Some solutions for n=3 ..3..1..2....2..3..0....2..1..3....1..0..2....3..2..3....0..1..0....1..3..0 ..2..0..3....1..0..3....3..0..1....2..3..1....2..1..0....3..0..1....0..2..3 ..1..3..0....0..2..1....0..2..0....3..0..3....1..0..3....2..3..0....3..1..2 ..3..1..2....3..1..3....3..0..1....2..1..0....2..3..0....3..2..1....1..0..3 ..0..3..1....1..3..0....0..1..3....1..3..1....3..2..3....0..1..0....0..3..1 CROSSREFS Sequence in context: A138079 A183831 A234867 * A245949 A223159 A223158 Adjacent sequences: A234859 A234860 A234861 * A234863 A234864 A234865 KEYWORD nonn AUTHOR R. H. Hardin, Jan 01 2014 STATUS approved

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Last modified August 11 21:40 EDT 2024. Contains 375073 sequences. (Running on oeis4.)