A111237 LCM of the absolute values of the inverse Hilbert matrix.

1, 12, 2880, 226800, 101606400, 6985440000, 35961045120000, 1431699108840000, 692306057963520000, 181128033944995737600, 344143264495491901440000, 6651046563131624734080000, 22028266217091941119272960000

Offset

1,2

Links

Table of n, a(n) for n=1..13.

Prog

In J (http://www.jsoftware.com):
H=: % @: >: @: (+/~) @: i. @: x:
*./ @: | @:, @: %. @: H n

Crossrefs

Cf. A005249, determinant of inverse Hilbert matrix A111194, permanent of inverse Hilbert matrix A092326, (permanent/determinant) of inverse Hilbert matrix.

Sequence in context: A010053 A092299 A006272 * A028666 A103658 A271515

Adjacent sequences: A111234 A111235 A111236 * A111238 A111239 A111240

Keyword

nonn

Author

Roger Hui, Oct 28 2005

Status

approved