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1, 5, 10, 37, 26, 230, 50, 549, 253, 1030, 122, 20998, 170, 2798, 3410, 16933, 290, 105449, 362, 161062, 9320, 10774, 530, 7984134, 3151, 17750, 19936, 617486, 842, 24304630, 962, 1065509, 36068, 39598, 42950, 362923273, 1370, 55238, 59498, 102561574
(list;
graph;
refs;
listen;
history;
text;
internal format)
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OFFSET
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1,2
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LINKS
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Andrew Howroyd, Table of n, a(n) for n = 1..1000
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EXAMPLE
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For n = 4, A007955(n) = b(n): a(4) = b(1)*1 + b(2)*2 + b(4)*4 = 1*1 + 2*2 + 8*4 = 37.
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PROG
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(PARI) a(n)={sumdiv(n, d, vecprod(divisors(d))*d)} \\ Andrew Howroyd, Jan 05 2020
(MAGMA) [&+[&*Divisors(d)*d:d in Divisors(n)]:n in [1..40]]; // Marius A. Burtea, Jan 05 2020
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CROSSREFS
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Cf. A007955.
Sequence in context: A326232 A189732 A307607 * A270219 A270276 A271604
Adjacent sequences: A174930 A174931 A174932 * A174934 A174935 A174936
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KEYWORD
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nonn
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AUTHOR
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Jaroslav Krizek, Apr 02 2010
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EXTENSIONS
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Terms a(31) and beyond from Andrew Howroyd, Jan 05 2020
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STATUS
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approved
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