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A162126
Number of n X n binary arrays with rows and columns, considered as graycode numbers, in strictly increasing order, and no more than 9 ones in any row or column
0
2, 4, 25, 408, 18003, 2289232, 851979730, 942937083934, 3167530249345690, 32647456893467395175
OFFSET
1,1
CROSSREFS
Sequence in context: A162123 A162124 A162125 * A162118 A128774 A218258
KEYWORD
nonn
AUTHOR
R. H. Hardin Jun 25 2009
STATUS
approved