login
The OEIS Foundation is supported by donations from users of the OEIS and by a grant from the Simons Foundation.

 

Logo


Hints
(Greetings from The On-Line Encyclopedia of Integer Sequences!)
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. 0
1, 0, 0, 3, 19, 141, 1571, 21928 (list; graph; refs; listen; history; text; internal format)
OFFSET

0,4

LINKS

Table of n, a(n) for n=0..7.

CROSSREFS

Row n=3 of A331509.

Sequence in context: A221266 A082758 A110525 * A058859 A291964 A333094

Adjacent sequences:  A331713 A331714 A331715 * A331717 A331718 A331719

KEYWORD

nonn,more

AUTHOR

Andrew Howroyd, Feb 01 2020

STATUS

approved

Lookup | Welcome | Wiki | Register | Music | Plot 2 | Demos | Index | Browse | More | WebCam
Contribute new seq. or comment | Format | Style Sheet | Transforms | Superseeker | Recent
The OEIS Community | Maintained by The OEIS Foundation Inc.

License Agreements, Terms of Use, Privacy Policy. .

Last modified October 19 17:24 EDT 2021. Contains 348091 sequences. (Running on oeis4.)