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A074036 Sum of the primes from the smallest prime factor of n to the largest prime factor of n. +0
5
0, 2, 3, 2, 5, 5, 7, 2, 3, 10, 11, 5, 13, 17, 8, 2, 17, 5, 19, 10, 15, 28, 23, 5, 5, 41, 3, 17, 29, 10, 31, 2, 26, 58, 12, 5, 37, 77, 39, 10, 41, 17, 43, 28, 8, 100, 47, 5, 7, 10, 56, 41, 53, 5, 23, 17, 75, 129, 59, 10, 61, 160, 15, 2, 36, 28, 67, 58, 98, 17, 71, 5, 73, 197, 8 (list; graph; listen)
OFFSET

1,2

EXAMPLE

a(14) = 17 because 14 = 2*7 and 2+3+5+7 = 17.

CROSSREFS

Cf. A055233.

Sequence in context: A075860 A008472 A123528 this_sequence A074251 A074196 A068319

Adjacent sequences: A074033 A074034 A074035 this_sequence A074037 A074038 A074039

KEYWORD

easy,nonn

AUTHOR

Jason Earls (zevi_35711(AT)yahoo.com), Sep 15 2002

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Last modified July 24 12:00 EDT 2008. Contains 142294 sequences.


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