1,1
A136743(a(n)) = n and A136743(m) <> n for m < a(n).
Table of n, a(n) for n=1..19.
a(6)=10: A136743(10) = A001221(A136742(10)) = A001221(39270) =
A001221(2*3*5*7*11*17) = 6.
Sequence in context: A115638 A055515 A215010 * A068237 A083345 A087262
Adjacent sequences: A136741 A136742 A136743 * A136745 A136746 A136747
nonn
Reinhard Zumkeller, Jan 20 2008
a(10)-a(19) from Donovan Johnson, Feb 18 2010
approved
