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 A195953 Number of lower triangles of an n X n 0..8 array with each element equal to the number of its diagonal, antidiagonal, horizontal and vertical neighbors unequal to itself 1
 1, 4, 2, 3, 7, 8, 10, 8, 8, 94, 118, 50 (list; graph; refs; listen; history; text; internal format)
 OFFSET 1,2 LINKS EXAMPLE Some solutions for n=10 ..2....................2....................2 ..3.3..................3.3..................3.3 ..4.6.3................4.7.3................5.7.3 ..4.6.7.3..............4.8.6.3..............4.8.4.3 ..5.8.6.6.3............5.7.6.7.3............5.4.4.4.3 ..4.7.5.5.7.3..........4.7.8.6.6.3..........4.8.7.4.6.3 ..4.7.5.5.8.6.3........5.4.4.4.4.4.3........5.7.4.4.6.7.3 ..5.8.6.6.7.6.7.3......4.7.4.4.6.4.4.3......4.8.4.4.8.6.6.3 ..4.7.7.6.7.8.6.6.3....5.8.7.6.6.4.8.7.3....4.7.7.4.7.7.8.7.3 ..3.4.5.4.4.5.4.4.3.2..3.4.4.5.4.5.4.5.3.2..3.5.4.5.4.5.4.4.3.2 CROSSREFS Sequence in context: A021240 A306716 A143054 * A016512 A201651 A026246 Adjacent sequences:  A195950 A195951 A195952 * A195954 A195955 A195956 KEYWORD nonn AUTHOR R. H. Hardin Sep 25 2011 STATUS approved

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Last modified August 7 17:44 EDT 2020. Contains 336278 sequences. (Running on oeis4.)