71973

Appears in sequences

• Consider the Kaprekar map n->K(n) defined in A151949. Sequence gives numbers belonging to cycles of length greater than 1.at n=5A099010
• Consider the Kaprekar map n->K(n) defined in A151949. Sequence gives numbers belonging to cycles, including fixed points.at n=8A164716
• a(n) = n*(2*n^2 + 3), n >= 1; a(0)=1.at n=33A288534
• a(1) = 0, a(2) = 1, and for n > 2, a(n) = 2*a(A252463(n)) + [n == 1 (mod 2)]*[J(3|n) == 1], where J is the Jacobi-symbol.at n=58A292253