72064

Appears in sequences

• Fibonacci sequence beginning 2, 16.at n=19A022370
• a(n) = s(1)t(n) + s(2)t(n-1) + ... + s(k)t(n+1-k), where k = [ (n+1)/2 ], s = A023532, t = (Lucas numbers).at n=21A024368
• Erroneous version of A024368.at n=20A025068
• 3-apexes of Omega: numbers k such that Omega(k-3) < Omega(k-2)< Omega(k-1) < Omega(k) > Omega(k+1) > Omega(k+2) > Omega(k+3), where Omega(m) = the number of prime factors of m, counting multiplicity.at n=20A076760
• A004001[n + 1]*Fibonacci[n + 1] - 2*A004001[n]*Fibonacci[n] + A004001[n - 1]*Fibonacci[n - 1].at n=21A120472
• Array read by rows: T(n,k) is the number of directed multigraphs with loops with n arcs, k vertices, and no vertex of degree 0.at n=60A136564
• x-values in the solution to x^2 - 20*y^2 = 176.at n=19A228207
• E.g.f. A(x) satisfies A(x) = exp( 1/(1 - x/A(x)) - 1 ).at n=9A361095