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Search: id:A064541
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| A064541 |
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Values of n such that 2^n ends in n. |
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+0
7
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| 36, 736, 8736, 48736, 948736, 2948736, 32948736, 432948736, 3432948736, 53432948736, 353432948736, 5353432948736, 75353432948736, 5075353432948736, 15075353432948736, 615075353432948736
(list; graph; listen)
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OFFSET
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1,1
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COMMENT
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a(n+1) is a suffix of 2^a(n) formed by a non-zero digit followed by a number of zeros and a(n). E.g.: a(13)=75353432948736 and 2^a(13) ends with ...15075353432948736, hence a(14)=5075353432948736. - Max Alekseyev, Apr 18 2007
There is no term with 15 digits.
Can be obtained from A109405 by removing all repeats. - Max Alekseyev, May 11 2007
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LINKS
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Index entries for sequences related to final digits of numbers
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EXAMPLE
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2^36 = 68719476736 which ends in 36.
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CROSSREFS
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Cf. A064540, A121319, A109405.
The leading digits are listed in A064540.
Sequence in context: A054339 A138832 A109405 this_sequence A058001 A004329 A089909
Adjacent sequences: A064538 A064539 A064540 this_sequence A064542 A064543 A064544
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KEYWORD
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base,nonn,easy,nice
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AUTHOR
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Jonathan Ayres (jonathan.ayres(AT)btinternet.com), Oct 08 2001
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