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Search: id:A162092
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A162092 Number of nXn symmetric binary arrays with rows, considered as binary numbers, in strictly increasing order, and no more than 2 ones in any row +0
1
2, 3, 7, 16, 41, 109, 298, 858, 2533, 7773, 24438, 79079, 261961, 888335, 3078307, 10884541, 39246121, 144089532, 538426333, 2045444718, 7895980672, 30947906902, 123093837504, 496552331743, 2030469580356 (list; graph; listen)
OFFSET

1,1
CROSSREFS

Sequence in context: A027118 A114582 A091487 this_sequence A143884 A122031 A089125

Adjacent sequences: A162089 A162090 A162091 this_sequence A162093 A162094 A162095

KEYWORD

nonn

AUTHOR

Ron Hardin (rhhardin(AT)att.net) Jun 25 2009

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Last modified December 10 12:37 EST 2009. Contains 170569 sequences.

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