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A111237 LCM of the absolute values of the inverse Hilbert matrix. 0
1, 12, 2880, 226800, 101606400, 6985440000, 35961045120000, 1431699108840000, 692306057963520000, 181128033944995737600, 344143264495491901440000, 6651046563131624734080000, 22028266217091941119272960000 (list; graph; refs; listen; history; text; internal format)
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

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Last modified September 25 21:07 EDT 2020. Contains 337344 sequences. (Running on oeis4.)