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Search: id:A029715
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| A029715 |
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a(n) = Sum S(k), k divides 2^n, where S is the Kempner-Smarandache function A002034. |
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+0
2
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| 1, 3, 7, 11, 17, 25, 33, 41, 51, 63, 75, 89, 105, 121, 137, 153, 171, 191, 211, 233, 257, 281, 305, 331, 359, 387, 417, 449, 481, 513, 545, 577, 611, 647, 683, 721, 761, 801, 841, 883, 927, 971, 1017, 1065, 1113, 1161, 1209, 1259, 1311, 1363, 1417, 1473, 1529
(list; graph; listen)
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OFFSET
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0,2
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MAPLE
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A002034 := proc(n) local m; m :=1 ; while type(factorial(m)/n, 'integer') = false do m := m+1 ; od ; RETURN(m) ; end: A029715 := proc(n) local a, i; a :=0 ; for i from 0 to n do a := a+A002034(2^i) ; od ; RETURN(a) ; end: for n from 0 to 80 do printf("%d, ", A029715(n)) ; od ; - R. J. Mathar (mathar(AT)strw.leidenuniv.nl), Jun 06 2007
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CROSSREFS
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Cf. A029714, A002034.
Sequence in context: A023234 A134707 A047838 this_sequence A088803 A088206 A052341
Adjacent sequences: A029712 A029713 A029714 this_sequence A029716 A029717 A029718
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KEYWORD
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nonn
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AUTHOR
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Norbert Hungerbuhler (buhler(AT)math.ethz.ch)
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EXTENSIONS
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More terms from R. J. Mathar (mathar(AT)strw.leidenuniv.nl), Jun 06 2007
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