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A056065
Order of certain group related to alternating sign matrices.
0
1, 1, 1, 1, 2, 210, 263340
OFFSET
1,5
LINKS
Benjamin Wieland, Large Dihedral Symmetry of the Set of Alternating Sign Matrices, Electronic J. Combinatorics, #R37, 2000.
CROSSREFS
Sequence in context: A355904 A092700 A178388 * A317978 A050445 A167833
KEYWORD
nonn
AUTHOR
N. J. A. Sloane, Jul 29 2000
STATUS
approved