83248

Appears in sequences

• Smallest m such that A001221(A001159(m)) = n.at n=13A066103
• a(n) = p(p+1)^2, where p is the n-th prime.at n=13A178398
• Molecular topological indices of the complete bipartite graphs K_{n,n}.at n=21A192418
• Numbers that are values of the totient function (A002202) but not of the reduced totient function (A002174).at n=29A270265
• Number of ways to choose a rooted partition of each part in a constant rooted partition of n.at n=30A301761
• Starts of runs of 3 consecutive lazy-Fibonacci-Niven numbers (A328212).at n=3A328214