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A174935 a(n) = Sum_{k<=n} A007955(k) * A000027(k) = Sum_{k<=n} A007955(k) * k, where A007955(m) = product of divisors of m. 0
1, 5, 14, 46, 71, 287, 336, 848, 1091, 2091, 2212, 22948, 23117, 25861, 29236, 45620, 45909, 150885, 151246, 311246, 320507, 331155, 331684, 8294308, 8297433, 8315009, 8334692, 8949348, 8950189, 33250189 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,2

LINKS

Table of n, a(n) for n=1..30.

EXAMPLE

For n = 4, A007955(n) = b(n): a(4) = b(1)*1 + b(2)*2 + b(3)* 3 + b(4)*4 = 1*1 + 2*2 + 3*3 + 8*4 = 46.

CROSSREFS

Sequence in context: A197212 A100059 A222908 * A077335 A176640 A126729

Adjacent sequences:  A174932 A174933 A174934 * A174936 A174937 A174938

KEYWORD

nonn

AUTHOR

Jaroslav Krizek, Apr 02 2010

STATUS

approved

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Last modified May 23 19:42 EDT 2013. Contains 225611 sequences.