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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
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OFFSET
1,3
LINKS
Table of n, a(n) for n=1..15.
CROSSREFS
Sequence in context: A182117 A207828 A208678 * A289486 A245361 A247340
Adjacent sequences: A162051 A162052 A162053 * A162055 A162056 A162057
KEYWORD
nonn
AUTHOR
R. H. Hardin Jun 25 2009
STATUS
approved

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Last modified November 7 12:11 EST 2024. Contains 377535 sequences.
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