A164726 Least element of each cycle of length 3 under the Kaprekar map A151949.
64308654, 6431088654, 6433086654, 6543086544, 9751088421, 643110888654, 643310886654, 643330866654, 654310886544, 654330866544, 655430865444, 975110888421, 975310886421, 975510884421, 997510884201, 64311108888654
Offset: 1