A181002 Number of (n+4)Xn binary matrices with rows and columns each in strictly increasing order as binary numbers and each row and column having an odd number of 1s

0, 0, 0, 0, 211, 173337, 260577888, 969386110957, 10083848050889455

Offset

1,5

Comments

Subdiagonal 4 of A181000

Links

Table of n, a(n) for n=1..9.

Crossrefs

Sequence in context: A276462 A096834 A013547 * A323426 A099687 A358873

Adjacent sequences: A180999 A181000 A181001 * A181003 A181004 A181005

Keyword

nonn

Author

R. H. Hardin Sep 30 2010

Status

approved