90086

Appears in sequences

• The least integer k >= 0 for which A328578(k) = A257993(A276086(A276086(k))) = n.at n=25A328761
• a(n) = A108951(n) - A373158(n), where A108951 is fully multiplicative and A373158 is fully additive with a(p) = p# for prime p, where x# is the primorial A034386(x).at n=51A373984