A184232 - OEIS

A184232

Number of strings of numbers x(i=1..n) in 0..n with sum i^2*x(i)^2 equal to n^4

1, 1, 2, 1, 15, 43, 706, 3719, 85718, 1186420, 21953477, 511276432, 9623532968, 260312395764

(list; graph; refs; listen; history; text; internal format)

OFFSET

1,3

COMMENTS

Diagonal of A184240

LINKS

EXAMPLE

All solutions for n=5

..5....3....5....4....0....0....0....1....1....5....0....4....5....0....0

..5....3....5....4....0....0....0....4....2....4....0....5....5....0....0

..4....2....2....3....5....3....4....4....4....2....0....1....0....5....0

..4....3....2....2....5....3....4....1....2....5....0....5....5....0....5

..2....4....4....4....0....4....3....4....4....2....5....2....2....4....3

CROSSREFS

KEYWORD

nonn

AUTHOR

STATUS

approved