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 A255112 Number of length n+5 0..2 arrays with at most one downstep in every n consecutive neighbor pairs 1
 729, 1791, 2907, 4429, 6582, 9297, 12662, 16779, 21765, 27753, 34893, 43353, 53320, 65001, 78624, 94439, 112719, 133761, 157887, 185445, 216810, 252385, 292602, 337923, 388841, 445881, 509601, 580593, 659484, 746937, 843652, 950367, 1067859 (list; graph; refs; listen; history; text; internal format)
 OFFSET 1,1 COMMENTS Row 5 of A255107 LINKS R. H. Hardin, Table of n, a(n) for n = 1..210 FORMULA Empirical: a(n) = (1/120)*n^5 + (1/3)*n^4 + (115/24)*n^3 + (889/6)*n^2 + (3867/10)*n + 111 for n>3 EXAMPLE Some solutions for n=4 ..0....2....1....0....1....2....1....1....0....1....0....2....1....0....0....2 ..2....0....1....1....0....2....1....0....2....0....2....2....0....2....2....0 ..2....0....1....0....0....1....2....1....1....0....0....0....0....2....2....0 ..0....2....1....0....1....1....1....1....1....2....0....1....0....2....2....0 ..0....2....0....1....2....2....1....2....1....2....2....1....0....2....1....0 ..2....2....0....2....2....2....1....2....1....2....2....1....0....0....1....0 ..2....0....0....0....1....0....2....1....0....2....2....2....0....1....1....2 ..1....1....1....1....2....1....0....1....0....2....1....0....0....1....2....2 ..2....1....1....2....2....1....2....2....0....0....2....0....1....1....1....1 CROSSREFS Cf. A255107 Sequence in context: A043455 A267697 A232925 * A255627 A139308 A295024 Adjacent sequences:  A255109 A255110 A255111 * A255113 A255114 A255115 KEYWORD nonn AUTHOR R. H. Hardin, Feb 14 2015 STATUS approved

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