328352

Appears in sequences

• Numbers n such that phi(n) = 2*phi(n-2).at n=39A258454
• Number of compositions of n if all summand runs are kept together.at n=29A274174
• a(n) is the sigma irregularity of the n-th power of a path graph of length at least 3*n.at n=30A363706
• Number of permutations p of [n] such that max(|p(p(i)) - i|)=1.at n=11A364819