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Search: id:A104463
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| 0, 1, 3, 6, 7, 12, 13, 15, 16, 21, 25, 27, 28, 30, 33, 34, 36, 39, 43, 46, 48, 52, 55, 57, 60, 61, 63, 66, 67, 70, 73, 75, 76, 79, 81, 84, 87, 88, 93, 96, 97, 102, 103, 106, 108, 111, 115, 117, 120, 123, 124, 127, 129, 133, 135, 136, 138, 141, 142, 147, 148, 150, 151
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OFFSET
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0,3
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FORMULA
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A104463(n)=s(n)+Floor(s(n)/2), where s(n)=A072756(n).
a(n)=A072757(n-2), n>1. [From R. J. Mathar (mathar(AT)strw.leidenuniv.nl), Aug 28 2008]
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EXAMPLE
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The sequences a(n)=A072756(n) and b(n)=A104463(n) are jointly defined:
a(n) = least positive integer not a(k) + Floor(a(k)/2) for k<n. Thus
a(0)=0, b(0)=0, a(1)=1, b(1)=1, a(2)=2, b(2)=3, a(3)=4, b(4)=6,...
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CROSSREFS
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Cf. A072756, A104464.
Sequence in context: A004760 A093906 A152829 this_sequence A072757 A032849 A038591
Adjacent sequences: A104460 A104461 A104462 this_sequence A104464 A104465 A104466
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KEYWORD
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nonn
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AUTHOR
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Clark Kimberling (ck6(AT)evansville.edu), Mar 08 2005
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