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Search: id:A007396
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| A007396 |
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Add 2, then reverse digits!. (Formerly M0983)
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+0 1
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| 0, 2, 4, 6, 8, 1, 3, 5, 7, 9, 11, 31, 33, 53, 55, 75, 77, 97, 99, 101, 301, 303, 503, 505, 705, 707, 907, 909, 119, 121, 321, 323, 523, 525, 725, 727, 927, 929, 139, 141, 341, 343, 543
(list; graph; listen)
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OFFSET
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0,2
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COMMENT
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At 6, the sequence becomes periodic with period 81. [From T. D. Noe (noe(AT)sspectra.com), Oct 05 2008]
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REFERENCES
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J. Roberts, Lure of the Integers, Math. Assoc. America, 1992, p. 15.
N. J. A. Sloane and Simon Plouffe, The Encyclopedia of Integer Sequences, Academic Press, 1995 (includes this sequence).
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LINKS
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Nick Hobson, Python program for this sequence
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MATHEMATICA
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s=0; Join[{s}, Table[s=FromDigits[Reverse[IntegerDigits[2+s]]], {100}]] [From T. D. Noe (noe(AT)sspectra.com), Oct 05 2008]
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CROSSREFS
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A117521 [From T. D. Noe (noe(AT)sspectra.com), Oct 05 2008]
Sequence in context: A133311 A088402 A077492 this_sequence A004519 A036839 A004093
Adjacent sequences: A007393 A007394 A007395 this_sequence A007397 A007398 A007399
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KEYWORD
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nonn,base,easy,more
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AUTHOR
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N. J. A. Sloane (njas(AT)research.att.com).
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