89082

Appears in sequences

• Atom-rooted polyenoids with n edges with symmetry class C_s.at n=11A000908
• Determinant of the n X n matrix whose element (i,j) equals f(|i-j|) where f(n) is 1 if the sum of middle divisors (A071090) > 0, else 0.at n=28A071548
• a(n) is the least positive integer such that the integer part of the arithmetic-geometric mean of a(n) and 1 is equal to Fibonacci(n).at n=20A090854
• Duplicate of A000908.at n=11A121095
• Number of 3D walks of type abc.at n=9A302182
• a(n) = Sum of (Y(2,p)^2) over the partitions p of n, Y(2,p) = number of part sizes with multiplicity 2 or greater in p.at n=36A302347
• E.g.f. A(x) satisfies A(x) = 1 + x^2*exp(x)*A(x)^2.at n=7A390646