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A028506 Number of non-descending integral vectors b of length n such that number of symmetric 0-1-matrices A of order n with row sums <= b is odd. 0
1, 2, 4, 10, 24, 68 (list; graph; refs; listen; history; internal format)
OFFSET

1,2

CROSSREFS

Sequence in context: A151516 A003104 A121186 * A148088 A029893 A148089

Adjacent sequences:  A028503 A028504 A028505 * A028507 A028508 A028509

KEYWORD

nonn

AUTHOR

TORSTEN.SILLKE(AT)LHSYSTEMS.COM

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Last modified February 17 00:09 EST 2012. Contains 205978 sequences.