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 A211829 Number of nonnegative integer arrays of length n+2 with new values 0 upwards introduced in order, no three adjacent elements equal, and containing the value 2 1
 1, 7, 33, 146, 664, 3199, 16479, 90774, 532870, 3319142, 21844498, 151329352, 1099821989, 8361242674, 66320784806, 547602705993, 4697109617699, 41777867535655, 384671271441332, 3661037447438874, 35965775221693131 (list; graph; refs; listen; history; text; internal format)
 OFFSET 1,2 COMMENTS Column 1 of A211836 LINKS R. H. Hardin, Table of n, a(n) for n = 1..210 EXAMPLE Some solutions for n=3 ..0....0....0....0....0....0....0....0....0....0....0....0....0....0....0....0 ..1....1....1....1....1....1....1....1....1....1....1....1....1....1....0....1 ..0....2....2....2....1....2....2....2....1....2....2....2....2....2....1....0 ..2....1....0....0....0....0....3....3....2....0....3....3....3....2....2....2 ..0....0....3....2....2....1....1....0....0....0....3....4....2....3....2....3 CROSSREFS Sequence in context: A278027 A225895 A089106 * A227555 A304278 A155603 Adjacent sequences: A211826 A211827 A211828 * A211830 A211831 A211832 KEYWORD nonn AUTHOR R. H. Hardin Apr 21 2012 STATUS approved

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Last modified August 9 01:56 EDT 2024. Contains 375024 sequences. (Running on oeis4.)