160744

Appears in sequences

• Number of centered trees with n nodes.at n=19A000676
• Numbers k such that the period of the continued fraction for sqrt(k) contains exactly 75 ones.at n=13A031843
• a(n) = a(n-1) + a(n-2) + a([n/3]) + a([2n/3]), where a(0) = 1, a(1) = 2, a(2) = 3.at n=20A298345