89929

Appears in sequences

• Number of labeled trees of height at most 4.at n=7A052514
• Prime(n) divides F(n)-1 where F(n) are the Fibonacci numbers.at n=7A071777
• Triangle read by rows: T(n,k) = number of rooted labeled trees with n nodes and height <= k, for n >= 1, 0 <= k <= n-1.at n=25A236396
• Integers n such that n-th prime divides the n-th golden rectangle number.at n=10A271332
• Decimal representation of the x-axis, from the origin to the right edge, of the n-th stage of growth of the two-dimensional cellular automaton defined by "Rule 54", based on the 5-celled von Neumann neighborhood.at n=18A278601
• Third diagonal sequence of the Sheffer triangle A094816 (special Charlier).at n=27A290312
• a(n) = Sum_{1 <= x_1, x_2, x_3 <= n} ( n/gcd(x_1, x_2, x_3, n) )^2.at n=9A372962