login
Number of strings of numbers x(i=1..8) in 0..n with sum i*x(i)^2 equal to n*64
1

%I #5 Mar 31 2012 12:36:00

%S 6,63,359,1235,3532,9478,19257,38560,77476,126541,210018,369550,

%T 526449,789226,1274930,1669850,2334818,3544722,4379421,5884724,

%U 8470175,10089464,12944196,18222068,21049447,26194973,35852532,40087478,49010287,66350658

%N Number of strings of numbers x(i=1..8) in 0..n with sum i*x(i)^2 equal to n*64

%C Row 8 of A184441

%H R. H. Hardin, <a href="/A184447/b184447.txt">Table of n, a(n) for n = 1..40</a>

%e Some solutions for n=5

%e ..0....3....1....3....1....3....0....1....1....0....3....0....4....2....5....3

%e ..2....0....2....4....1....3....5....3....3....0....1....4....5....3....3....4

%e ..4....2....4....5....5....1....0....2....2....4....4....0....3....1....1....0

%e ..3....0....3....0....2....4....1....3....4....0....0....2....1....0....2....0

%e ..1....3....3....3....3....3....5....5....1....2....3....2....0....0....5....3

%e ..4....1....3....2....3....3....1....0....0....4....4....4....4....0....1....3

%e ..1....0....0....1....1....1....1....0....2....2....0....2....1....5....1....2

%e ..0....4....1....1....0....0....1....1....3....1....0....1....0....0....0....2

%K nonn

%O 1,1

%A _R. H. Hardin_ Jan 14 2011