1,1
T. D. Noe, Table of n, a(n) for n=1..1000
a(n)=max(A006530(A002025(n+1)),A006530(A002046(n+1))) . - R. J. Mathar, Nov 10 2006
220 = 2^2*5*11, 284 = 2^2*71. The greatest prime factor in the pair is 71.
Cf. A063990 = Amicable numbers, A061469 = GCD of the amicable pairs.
Sequence in context: A317721 A128856 A033391 * A087075 A095936 A104843
Adjacent sequences: A122964 A122965 A122966 * A122968 A122969 A122970
nonn
Tanya Khovanova, Oct 27 2006
More terms from R. J. Mathar, Nov 10 2006
approved