A091777 Product of the numbers from (n-1)^2+1 to n^2.

1, 24, 15120, 57657600, 741354768000, 23982224839372800, 1635195634511530291200, 208598907329474462760960000, 45687336913897607308591411200000, 16098703928453240136983769705676800000, 8673124144989289711553231707961190973440000

Offset

1,2

Links

Table of n, a(n) for n=1..11.

Formula

a(n) = (n^2)!/((n-1)^2)! - T. D. Noe, Oct 25 2004

Example

a(1) = 1, a(2) = 2*3*4, a(3) = 5*6*7*8*9.

Mathematica

Table[(n^2)!/((n-1)^2)!, {n, 11}]

Crossrefs

Cf. A091776.

Sequence in context: A159729 A341801 A028694 * A362712 A279299 A145496

Adjacent sequences: A091774 A091775 A091776 * A091778 A091779 A091780

Keyword

nonn

Author

Amarnath Murthy, Feb 16 2004

Extensions

More terms from T. D. Noe, Oct 25 2004

Status

approved