A056065 Order of certain group related to alternating sign matrices.

1, 1, 1, 1, 2, 210, 263340

Offset

1,5

Links

Table of n, a(n) for n=1..7.

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

Adjacent sequences: A056062 A056063 A056064 * A056066 A056067 A056068

Keyword

nonn

Author

N. J. A. Sloane, Jul 29 2000

Status

approved