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 A235102 Number of (n+1) X (3+1) 0..6 arrays with every 2 X 2 subblock having its diagonal sum differing from its antidiagonal sum by 4, with no adjacent elements equal (constant-stress tilted 1 X 1 tilings). 1
 2900, 9328, 30312, 101464, 345280, 1201872, 4256548, 15381300, 56526280, 211590104, 804635776, 3110475000, 12194766820, 48482860692, 195060662440, 793719896600, 3260655523872, 13512949591560, 56412040046244 (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 62 FORMULA Empirical recurrence of order 62 (see link above). EXAMPLE Some solutions for n=4: 2 4 1 4 2 1 3 4 2 1 2 5 3 0 1 6 4 5 6 0 5 3 4 3 0 3 1 6 5 0 5 4 4 5 2 3 1 6 3 1 2 4 1 4 3 2 4 5 3 2 3 6 5 2 3 0 0 1 2 4 3 1 2 1 0 3 1 6 6 1 6 5 3 4 1 2 6 3 0 6 4 6 3 6 3 2 4 5 3 2 3 6 6 3 4 1 0 1 2 4 CROSSREFS Column 3 of A235107. Sequence in context: A248109 A219963 A340201 * A252267 A207281 A207477 Adjacent sequences: A235099 A235100 A235101 * A235103 A235104 A235105 KEYWORD nonn AUTHOR R. H. Hardin, Jan 03 2014 STATUS approved

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Last modified September 8 15:19 EDT 2024. Contains 375753 sequences. (Running on oeis4.)