

A213464


T(n,k)=Number of 0..3 arrays of length n+2*k1 with sum less than 3*k in any length 2k subsequence (=less than 50% duty cycle)


14



6, 106, 14, 1758, 310, 31, 28722, 5542, 927, 70, 466136, 94238, 18018, 2735, 157, 7536790, 1568984, 319078, 58898, 7803, 353, 121573668, 25829770, 5444644, 1091036, 191573, 22506, 793, 1957953138, 422335348, 91147915, 19105020, 3737885
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OFFSET

1,1


COMMENTS

Table starts
....6....106....1758.....28722.....466136.....7536790....121573668
...14....310....5542.....94238....1568984....25829770....422335348
...31....927...18018....319078....5444644....91147915...1508740928
...70...2735...58898...1091036...19105020...325333429...5451265872
..157...7803..191573...3737885...67329406..1167362677..19808276303
..353..22506..615561..12773955..237475982..4198162231..72188618371
..793..65425.1940673..43399990..836356119.15103463125.263422708979
.1782.190318.6155514.146145812.2935825527.54284048195.961420842175


LINKS

R. H. Hardin, Table of n, a(n) for n = 1..897


EXAMPLE

Some solutions for n=3 k=4
..2....0....2....0....0....0....2....0....0....2....0....0....0....2....0....0
..2....2....0....2....1....2....2....0....0....0....0....1....1....2....2....0
..2....1....0....0....0....3....0....0....0....0....0....2....0....1....1....0
..1....3....1....1....0....0....0....2....0....0....2....0....0....1....1....1
..1....1....1....3....2....0....2....2....0....3....3....0....0....1....0....2
..0....1....3....1....2....2....1....2....0....0....0....0....0....2....2....0
..1....0....0....0....1....0....1....0....0....0....1....0....2....1....1....1
..1....1....0....0....1....0....3....0....0....2....0....2....2....0....2....2
..2....0....2....1....3....0....2....1....2....2....1....0....2....2....2....2
..3....3....0....3....0....2....1....3....2....3....2....0....2....1....1....2


CROSSREFS

Column 1 is A006356(n+1)
Sequence in context: A259156 A075068 A055763 * A213465 A214349 A305134
Adjacent sequences: A213461 A213462 A213463 * A213465 A213466 A213467


KEYWORD

nonn,tabl


AUTHOR

R. H. Hardin Jun 12 2012


STATUS

approved



