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A082640 Triangle T(m,n) read by rows: unimodular triangulations of the grid P(m,n), m,n>0, n<=m. 0
2, 6, 64, 20, 852, 46456, 70, 12170, 2822648, 736983568, 252, 182132, 182881520, 208902766788, 260420548144996, 924, 2801708, 12244184472, 61756221742966, 341816489625522032, 1999206934751133055518 (list; table; graph; refs; listen; history; internal format)
OFFSET

1,1

LINKS

V. Kaibel and G. M. Ziegler, Counting Lattice Triangulations

EXAMPLE

2

6 64

20 852 46456

70 12170 2822648 736983568

CROSSREFS

First column is T(m, 1) = A000984(m).

Row sums: A151686. - N. J. A. Sloane, Jun 02 2009

Sequence in context: A134706 A145756 A030170 * A139695 A052522 A193609

Adjacent sequences:  A082637 A082638 A082639 * A082641 A082642 A082643

KEYWORD

nonn,tabl

AUTHOR

Ralf Stephan (ralf(AT)ark.in-berlin.de), May 15 2003

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Last modified February 16 08:54 EST 2012. Contains 205897 sequences.