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A180994 Number of (n+5)xn binary matrices with rows and then columns in strictly increasing order as binary numbers 0
0, 0, 1, 3489, 5754681, 15031688395, 85146473995739, 1221835613883859705, 48879331646085761019504, 5817604509321397715670886548, 2157782748250229924192241839158932 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,4

COMMENTS

Subdiagonal 5 of A180989

LINKS

Table of n, a(n) for n=1..11.

EXAMPLE

All solutions for 8X3

..0..0..0

..0..0..1

..0..1..0

..0..1..1

..1..0..0

..1..0..1

..1..1..0

..1..1..1

CROSSREFS

Sequence in context: A031557 A031737 A268156 * A204721 A204960 A249525

Adjacent sequences:  A180991 A180992 A180993 * A180995 A180996 A180997

KEYWORD

nonn

AUTHOR

R. H. Hardin Sep 30 2010

STATUS

approved

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Last modified August 20 01:14 EDT 2019. Contains 326136 sequences. (Running on oeis4.)