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A263124
T(n,k)=Number of (n+3)X(k+3) 0..1 arrays with each row divisible by 15 and column not divisible by 15, read as a binary number with top and left being the most significant bits.
10
14, 36, 29, 168, 148, 59, 912, 1664, 522, 119, 52446, 28048, 10356, 1708, 238, 502800, 887805, 316392, 56288, 5124, 477, 5950176, 21881010, 17782827, 3049840, 238104, 15640, 955, 79674864, 583371100, 881938092, 344322375, 16751376, 1294448, 47602
OFFSET
1,1
COMMENTS
Table starts
...14.....36......168........912........52446........502800.......5950176
...29....148.....1664......28048.......887805......21881010.....583371100
...59....522....10356.....316392.....17782827.....881938092...47672389112
..119...1708....56288....3049840....344322375...33563774112.3600054345088
..238...5124...238104...16751376...6946980030.1213776549696
..477..15640..1294448..216762400.113558538589
..955..47602..6844676.2168966344
.1911.144236.35274768
.3822.432708
.7645
LINKS
FORMULA
Empirical for column k:
k=1: a(n) = 2*a(n-1) +a(n-4) -2*a(n-5)
k=2: [order 46]
EXAMPLE
Some solutions for n=3 k=4
..0..0..0..0..0..0..0....1..0..0..1..0..1..1....1..1..0..1..0..0..1
..0..0..0..0..0..0..0....0..0..1..1..1..1..0....1..1..0..1..0..0..1
..0..0..0..0..0..0..0....0..0..0..0..0..0..0....0..1..0..1..1..0..1
..0..0..1..1..1..1..0....0..1..1..1..1..0..0....0..0..0..0..0..0..0
..0..0..0..0..0..0..0....1..0..0..1..0..1..1....0..0..1..1..1..1..0
..1..1..0..1..0..0..1....1..0..1..1..0..1..0....1..0..0..1..0..1..1
CROSSREFS
Sequence in context: A203803 A115664 A182753 * A024814 A340460 A268319
KEYWORD
nonn,tabl
AUTHOR
R. H. Hardin, Oct 10 2015
STATUS
approved