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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.
2
1, 2, 4, 10, 24, 68, 198, 656
OFFSET
1,2
COMMENTS
Is this the same sequence as A029893? - Sean A. Irvine, Feb 05 2020
LINKS
Sean A. Irvine, Java program (github)
CROSSREFS
Sequence in context: A309505 A309504 A148088 * A029893 A372123 A148089
KEYWORD
nonn,more
AUTHOR
TORSTEN.SILLKE(AT)LHSYSTEMS.COM
EXTENSIONS
a(7) and a(8) from Sean A. Irvine, Feb 05 2020
STATUS
approved