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A086718
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Convolution of sequence of primes with sequence sigma(n).
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0
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2, 9, 22, 48, 85, 151, 231, 355, 500, 709, 937, 1267, 1617, 2069, 2575, 3193, 3860, 4686, 5549, 6593, 7725, 8985, 10337, 11961, 13591, 15464, 17498, 19714, 22036, 24690
(list; graph; refs; listen; history; internal format)
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OFFSET
| 1,1
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PROG
| (PARI) p=primes(30); s=vector(30, i, sigma(i)); conv(u, v)=local(w); w=vector(length(u), i, sum(j=1, i, u[j]*v[i+1-j])); w; conv(p, s)
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CROSSREFS
| Cf. A000040, A000203.
Sequence in context: A024850 A056105 A106058 * A023625 A166754 A026589
Adjacent sequences: A086715 A086716 A086717 * A086719 A086720 A086721
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KEYWORD
| nonn
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AUTHOR
| Jon Perry (perry(AT)globalnet.co.uk), Jul 29 2003
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