A164723 Numbers belonging to cycles of length 2 under the Kaprekar map A151949.
53955, 59994, 8733209876622, 9665429654331, 873332098766622, 966543296654331, 8764421997755322, 8765431997654322, 87333320987666622, 96654332966654331, 8733333209876666622, 9665433329666654331
Offset: 1