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A050780 (n + sopf_n = m) and (m - sopf_m = n). Sequence gives values of n. +0
3
39, 60, 70, 95, 119, 240, 2079, 2130, 2183, 3000, 3125, 3431, 4250, 6293, 6468, 9310, 10164, 10241, 10679, 13433, 14039, 14111, 15561, 16199, 16799, 23552, 24601, 27004, 28116, 28560, 31416, 32883, 42112, 44268, 52193, 52969, 53754, 59072 (list; graph; listen)
OFFSET

0,1

COMMENT

sopf_n = sum of the prime factors of n (with multiplicity).

EXAMPLE

E.g. 39 + (3+13) = 55 - (5+11) = 39.

CROSSREFS

Cf. A050781, A050703-A050710.

Sequence in context: A009633 A156333 A116281 this_sequence A039353 A043176 A043956

Adjacent sequences: A050777 A050778 A050779 this_sequence A050781 A050782 A050783

KEYWORD

nonn,nice

AUTHOR

Patrick De Geest (pdg(AT)worldofnumbers.com), Sep 15 1999.

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Last modified November 27 22:38 EST 2009. Contains 167602 sequences.


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