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A331716
Number of nonequivalent binary matrices with n distinct columns and any number of distinct nonzero rows with 3 ones in every column up to permutation of rows and columns.
1
1, 0, 0, 3, 19, 141, 1571, 21928
OFFSET
0,4
CROSSREFS
Row n=3 of A331509.
Sequence in context: A221266 A082758 A110525 * A058859 A291964 A333094
KEYWORD
nonn,more
AUTHOR
Andrew Howroyd, Feb 01 2020
STATUS
approved