|
|
A078525
|
|
Denominator of volume of Birkhoff polytope of n X n doubly-stochastic square matrices.
|
|
3
|
|
|
|
OFFSET
|
1,3
|
|
LINKS
|
|
|
EXAMPLE
|
Volumes for n=1 to 10, from Beck-Pixton (2003):
1 1
2 2
3 9/8
4 176/2835
5 23590375/167382319104
6 9700106723/1319281996032000000
7 77436678274508929033/13730296368223523839986892800000000
8 5562533838576105333259507434329/1258903626009547795008148094269333980330892800
00000000
9 559498129702796022246895686372766052475496691/9269262340995263649896514671280698429605195132920241960610847715334553600000000000000
10 727291284016786420977508457990121862548823260052557333386607889/828160860106766855125676318796872729344622463533089422677980721388055739956270293750883504892820848640000000
|
|
CROSSREFS
|
|
|
KEYWORD
|
nonn,frac,hard
|
|
AUTHOR
|
|
|
EXTENSIONS
|
|
|
STATUS
|
approved
|
|
|
|