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 A234906 Number of (n+1) X (2+1) 0..7 arrays with every 2 X 2 subblock having its diagonal sum differing from its antidiagonal sum by 1, with no adjacent elements equal (constant-stress tilted 1 X 1 tilings). 1
 1720, 12336, 88092, 692608, 5287952, 42777680, 333040552, 2723879976, 21343299552, 175549177208, 1379240212124, 11389288475912, 89624213348668, 742558641862440, 5850433339736772, 48618109622714396, 383454721019056852 (list; graph; refs; listen; history; text; internal format)
 OFFSET 1,1 LINKS R. H. Hardin, Table of n, a(n) for n = 1..210 R. H. Hardin, Empirical recurrence of order 87 FORMULA Empirical recurrence of order 87 (see link above). EXAMPLE Some solutions for n=3: 6 3 1 6 4 7 0 2 0 2 4 0 1 5 4 7 5 6 2 6 3 7 5 4 5 2 4 3 6 5 4 7 4 0 3 1 1 0 2 0 3 1 4 3 1 7 3 6 0 4 2 1 3 1 5 7 6 4 2 3 3 5 4 7 5 2 4 1 5 3 6 3 4 7 4 2 5 3 1 0 2 0 3 1 CROSSREFS Column 2 of A234911. Sequence in context: A237932 A276458 A252857 * A205195 A200958 A048958 Adjacent sequences: A234903 A234904 A234905 * A234907 A234908 A234909 KEYWORD nonn AUTHOR R. H. Hardin, Jan 01 2014 STATUS approved

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Last modified March 24 12:09 EDT 2023. Contains 361479 sequences. (Running on oeis4.)