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.

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

Author

R. H. Hardin, Oct 10 2015

Keywords

• nonn
• tabl

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

Examples

			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
		

Links

• R. H. Hardin, Table of n, a(n) for n = 1..59

Formula

Empirical for column k:

k=1: a(n) = 2*a(n-1) +a(n-4) -2*a(n-5)

k=2: [order 46]