561190

Appears in sequences

• Expansion of x*log'(((1-sqrt(1-4*x))/2-sqrt(((-sqrt(1-4*x)-11)*(1-sqrt(1-4*x)))/4+1)+1)/4).at n=8A243644
• Number of nonnegative integer matrices with distinct nonzero rows, total sum n and columns with equal sums.at n=7A331648