213402

Appears in sequences

• E.g.f.: Sum_{n>=0} a(n)*x^n/n! = {Sum_{n>=0} F(n+1)*x^n/n!}^2, where F(n) is the n-th Fibonacci number.at n=11A081057
• a(n) = 484*n^2 - 2*n.at n=20A158329
• List of fixed points of the base-8 Kaprekar map A165090.at n=4A165094
• Consider the base-8 Kaprekar map n->K(n) defined in A165090. Sequence gives numbers belonging to cycles, including fixed points.at n=20A165095
• Consider the base-8 Kaprekar map n->K(n) defined in A165090. Sequence gives least elements of each cycle, including fixed points.at n=9A165099
• Smallest member of cycle corresponding to n-th term of A165107.at n=7A165108
• G.f. A(x) satisfies: x = Sum_{n>=1} 1/A(x)^(8*n) * Product_{k=1..n} (1 - 1/A(x)^(2*k-1)).at n=6A214694