130341

Appears in sequences

• a(n) = Sum_{ d|n } sigma(n/d)*d^4.at n=18A027848
• Binary representation of n interpreted in base p, where p is the smallest prime factor of n: p = A020639(n).at n=18A092524
• Replace 2^i with n^i in binary representation of n.at n=18A104258
• (n-1)^(p-n+1)+n where p is the smallest prime > n-1.at n=19A171424
• a(0)=0, a(1)=1, a(2n)=19*a(n), a(2n+1)=a(2n)+1.at n=19A197353
• a(n) = Sum_{d|n} d^4*A000593(n/d).at n=18A288420