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Search: id:A165021
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| A165021 |
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Consider the base-4 Kaprekar map n->K(n) defined in A165012. Sequence gives least elements of each cycle, including fixed points. |
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+0
13
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| 0, 30, 126, 201, 570, 2550, 3369, 3873, 14565, 41958, 54441, 62625, 64641, 171990, 234405, 254865, 873129, 954261, 1004193, 1036929, 1044993, 2788950, 3755685, 4083345, 4165185, 11140950, 13978281, 15285909, 16075425, 16399953, 16599681
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OFFSET
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1,2
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COMMENT
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Initial terms in base 4: 0, 132, 1332, 3021, 20322, 213312, 310221, 330201, 3203211, 22033212.
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LINKS
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Joseph Myers, Table of n, a(n) for n=1..7165
Index entries for the Kaprekar map
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CROSSREFS
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Union of A165016 and A165023. Cf. A165012, A165022, A165017, A165019, A165030, A165025.
In other bases: A163205 (base 2), A165002 (base 3), A165041 (base 5), A165060 (base 6), A165080 (base 7), A165099 (base 8), A165119 (base 9), A164718 (base 10).
Sequence in context: A003901 A010744 A165017 this_sequence A044362 A044743 A100147
Adjacent sequences: A165018 A165019 A165020 this_sequence A165022 A165023 A165024
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KEYWORD
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base,nonn
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AUTHOR
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Joseph Myers (jsm(AT)polyomino.org.uk), Sep 04 2009
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