0,3
a(p)=2 for prime p.
a(n)=A000029(n) - A001371(n).
Sequence in context: A007012 A062830 A164941 this_sequence A066656 A164896 A118136
Adjacent sequences: A115116 A115117 A115118 this_sequence A115120 A115121 A115122
easy,nonn
Valery A. Liskovets (liskov(AT)im.bas-net.by), Jan 17 2006
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