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Search: id:A038506
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| A038506 |
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Floor of decimal expansion of n read as if it were "base e". |
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+0
2
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| 1, 2, 3, 4, 5, 6, 7, 8, 9, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 19, 20, 21, 22, 23, 24, 25, 26
(list; graph; listen)
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OFFSET
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1,2
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COMMENT
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Define e-basing of a decimal number as f(a) = a, f(ab) = Floor[a*e + b], f(abc) = Floor[ a*e^2 +b*e + c], etc. and generalize, where a,b,c are the digits. e =2.71828182845904523536028747135266...
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EXAMPLE
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a(135) = floor(1*e^2 + 3*e + 5) = floor(20.543901584307785933311289874633) = 20.
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CROSSREFS
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Sequence in context: A028897 A156230 A081594 this_sequence A091047 A068505 A080719
Adjacent sequences: A038503 A038504 A038505 this_sequence A038507 A038508 A038509
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KEYWORD
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base,nonn
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AUTHOR
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Amarnath Murthy (amarnath_murthy(AT)yahoo.com), Nov 14 2002
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EXTENSIONS
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More terms from Antonio G. Astudillo (afg_astudillo(AT)lycos.com), Mar 23 2003
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