73153080

Appears in sequences

• Triangle read by rows, n>=0, k>=0, T(0,0) = 1, T(n,k) = Sum_{j=0..k} (C(n+k,k-j)*(-1)^(k-j)*2^(n-j)*Sum_{i=0..j} (C(n+j,i)*|S(n+j-i,j-i)|)), S = Stirling number of first kind.at n=42A201636
• Numbers other than prime powers divisible by the sum, the sum of squares and the sum of cubes of their prime divisors.at n=9A268418