61974

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=2A099010
• Consider the Kaprekar map x->K(x) described in A151949. Sequence gives the smallest number that belongs to a cycle of length n under repeated iteration of this map, or -1 if there is no cycle of length n.at n=3A151959
• Smallest member of cycle corresponding to n-th term of A151964.at n=4A151965
• Consider the Kaprekar map n->K(n) defined in A151949. Sequence gives numbers belonging to cycles, including fixed points.at n=5A164716
• Consider the Kaprekar map n->K(n) defined in A151949. Sequence gives least elements of each cycle, including fixed points.at n=4A164718
• Consider the Kaprekar map n->K(n) defined in A151949. Sequence gives least elements of each cycle of length > 1.at n=1A164720
• Number of trees on n vertices with an even number of leaves.at n=18A262430
• The five digits of a(n) and their four successive absolute first differences are all distinct.at n=38A365257