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A109733
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Sequence (written here in base 10) is its own ASCII representation.
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2
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53, 51, 53, 49, 53, 51, 52, 57, 53, 51, 53, 49, 53, 50, 53, 55, 53, 51, 53, 49, 53, 51, 52, 57, 53, 51, 53, 48, 53, 51, 53, 53, 53, 51, 53, 49, 53, 51, 52, 57, 53, 51, 53, 49, 53, 50, 53, 55, 53, 51, 53, 49, 53, 51, 52, 56, 53, 51, 53, 49, 53, 51, 53, 51, 53, 51, 53, 49, 53
(list; graph; refs; listen; history; internal format)
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OFFSET
| 1,1
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COMMENTS
| The octal version of this idea is simply 66,66,66,66,.., not interesting.
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FORMULA
| I conjecture that a(n) = 53 when n is congruent to 1, 3 or 5 (mod 8) and a(n) = 51 when n is congruent to 2 (mod 8). - Jonathan Cross (jcross(AT)juggler.net), Oct 14 2005
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EXAMPLE
| a(1) = 53 (decimal) = 65 (octal) => '5',
a(2) = 51 (decimal) = 63 (octal) => '3',
a(3) = 53 (decimal) = 65 (octal) => '5',
a(4) = 49 (decimal) = 61 (octal) => '1', etc.
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PROG
| (PARI) a(n) = (valuation(1+n>>n=valuation(n, 2), 2)%5!=3)+56-(n-3)%5*2 \\ - M. F. Hasler, Jun 20 2011
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CROSSREFS
| Cf. A109648.
Sequence in context: A171132 A104936 A109648 * A094462 A042403 A174355
Adjacent sequences: A109730 A109731 A109732 * A109734 A109735 A109736
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KEYWORD
| easy,nonn,base
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AUTHOR
| N. J. A. Sloane (njas(AT)research.att.com) and Nadia Heninger (nadiah(AT)cs.princeton.edu), Aug 10 2005
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EXTENSIONS
| More terms from Jonathan Cross (jcross(AT)juggler.net), Oct 14 2005
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