1,2
a(n) = n*(A001223(n)-1) = n*A046933(n).
Cf. A001223, A046933, A141042, A147965, A147966.
Sequence in context: A046207 A030611 A081369 this_sequence A120487 A069220 A062957
Adjacent sequences: A147964 A147965 A147966 this_sequence A147968 A147969 A147970
easy,nonn
Omar E. Pol (info(AT)polprimos.com), Nov 17 2008
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