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A057152
Limiting number of m X m binary matrices with m+n ones, with no zero rows or columns, up to row and column permutations, as m tends to infinity.
4
1, 2, 15, 83, 545, 3493, 24006, 169419, 1249225, 9542846, 75621458, 620011391, 5253319121
OFFSET
0,2
FORMULA
a(n) = limit of A057149(m,m+n) as m tends to infinity
a(n) = A057149(3*n,4*n)
KEYWORD
more,nonn
AUTHOR
Vladeta Jovovic, Aug 14 2000
EXTENSIONS
Formula and a(6)-a(8) added by Max Alekseyev, Jan 24 2010
a(9)-a(12) from Max Alekseyev, Feb 17 2010
STATUS
approved