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A029715 a(n) = Sum S(k), k divides 2^n, where S is the Kempner function A002034. 2
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; refs; listen; history; text; internal format)
OFFSET

0,2

LINKS

Table of n, a(n) for n=0..52.

MAPLE

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, Jun 06 2007

CROSSREFS

Cf. A029714, A002034.

Sequence in context: A211076 A180452 A294479 * A088803 A194069 A088206

Adjacent sequences:  A029712 A029713 A029714 * A029716 A029717 A029718

KEYWORD

nonn

AUTHOR

Norbert Hungerbuhler (buhler(AT)math.ethz.ch)

EXTENSIONS

More terms from R. J. Mathar, Jun 06 2007

STATUS

approved

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Last modified October 18 23:12 EDT 2019. Contains 328211 sequences. (Running on oeis4.)