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

 

Logo

Year-end appeal: Please make a donation to the OEIS Foundation to support ongoing development and maintenance of the OEIS. We are now in our 56th year, we are closing in on 350,000 sequences, and we’ve crossed 9,700 citations (which often say “discovered thanks to the OEIS”).

Hints
(Greetings from The On-Line Encyclopedia of Integer Sequences!)
A172558 Number of 2*n X 12 0..1 arrays with row sums 6 and column sums n. 1
924, 32496156, 3718394156400, 729833528645228700, 195428754450309450171024, 64051375889927380035549804336, 24197157773366540262083203214418624, 10156485647319165206190655366818708639900 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,1

LINKS

R. H. Hardin, Table of n, a(n) for n=1..19

CROSSREFS

Sequence in context: A177305 A177306 A248814 * A229778 A172657 A172761

Adjacent sequences:  A172555 A172556 A172557 * A172559 A172560 A172561

KEYWORD

nonn

AUTHOR

R. H. Hardin Feb 06 2010

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 December 2 23:22 EST 2021. Contains 349445 sequences. (Running on oeis4.)