If `sum_(j=0)^2015sum_(i=0)^2015 i C_j=k ,`then the value of `(k+2)^(1/2016)is (where ^nC_r=0AAn < r & ^0C_0=0)`

The value of sum_(i-1)^nsum_(j=1)^isum_(k=1)^j1=286 , then the value of n equals

sum_(i=0)^(n)sum_(j=0)^(m)*^(n)C_(i)*C_(j) is equal to

The value of sum_(i=1)^(n)sum_(j=1)^(i)sum_(k=1)^(j)=220 , then the value of n equals

If a_(n) = sum_(r=0)^(n) (1)/(""^(n)C_(r)) , then the value of (sumsum)_(0leiltjlen) (i/(""^(n)C_(i))+j/(""^(n)C_(j)))

sum_(0<=i<=j<=n)^( Find the value of )(i+j)(nC_(i)+nC_(j))

Find the sum sumsum_(i!=j)^ nC_i^n C_j

sum_(i=1)^(n) sum_(j=1)^(i) sum_(k=1)^(j) 1, is equal to

sum_(0<=i<=j<=n)sum^(n)C_(i) is equal to