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A162054 Number of n X n symmetric binary arrays with rows, considered as binary numbers, in nondecreasing order, and an odd number of ones in each row 0
1, 1, 3, 8, 29, 201, 2045, 42099, 1463799, 96669398, 11401254845, 2496036627878, 998423279638638, 740614345658818495, 1016897944485885507894 (list; graph; refs; listen; history; text; internal format)
OFFSET
1,3
LINKS
CROSSREFS
Sequence in context: A182117 A207828 A208678 * A289486 A245361 A247340
KEYWORD
nonn
AUTHOR
R. H. Hardin Jun 25 2009
STATUS
approved

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Last modified April 17 07:13 EDT 2024. Contains 371756 sequences. (Running on oeis4.)