77424

Appears in sequences

• Number of integers k such that phi(k) = 10^n.at n=29A072074
• E.g.f. A(x) = G(x)/x where G(x) is the e.g.f. of A179493.at n=6A179494
• Number of n X 8 binary arrays without the pattern 0 1 diagonally, vertically or antidiagonally.at n=36A188865
• The number of distinct (up to alpha-equivalence) closed lambda calculus terms n characters long, assuming standard notational conventions.at n=13A260661