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Search: id:A039594
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| A039594 |
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a(n)-th hexagonal number ends with a(n). |
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+0
2
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| 1, 5, 6, 25, 26, 50, 51, 75, 76, 125, 376, 500, 501, 625, 876, 4376, 5000, 5001, 5625, 9376, 40625, 50000, 50001, 59376, 90625, 109376, 390625, 500000, 500001, 609376, 890625, 2109376, 2890625, 5000000, 5000001, 7109376, 7890625, 12890625
(list; graph; listen)
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OFFSET
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1,2
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COMMENT
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k values for the sequence A038494.
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REFERENCES
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D. Wells, The Penguin Dictionary of Curious and Interesting Numbers, Penguin Book, p. 104.
C. Pickover, Computers and Imagination, 1991.
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EXAMPLE
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50 is included because the 50th hexagonal number ends with itself i.e. 49{50}.
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CROSSREFS
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Cf. A038494, A000384.
Sequence in context: A160529 A039572 A033042 this_sequence A137080 A064827 A025622
Adjacent sequences: A039591 A039592 A039593 this_sequence A039595 A039596 A039597
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KEYWORD
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nonn,base
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AUTHOR
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Felice Russo (felice.russo(AT)katamail.com)
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EXTENSIONS
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More terms from Patrick De Geest (pdg(AT)worldofnumbers.com), Jun 15 1999.
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