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%I #4 Mar 30 2012 16:51:07
%S 1,3,3,5,5,9,9,9,9,15,15,15,15,15,15,25,25,25,25,25,25,25,25,25,25,27,
%T 27,45,45,45,45,45,45,45,45,45,45,45,45,45,45,45,45,45,45,75,75,75,75,
%U 75,75,75,75,75,75,75,75,75,75,75,75,75,75,75,75,75,75,75,75,75,75,75
%N a(n) = smallest integer >= n which has only prime factors 3 and 5.
%o (R) f <- function(n) nextn(n, factors = c(3,5))
%o a <- matrix(1:256,ncol=1)
%o apply(a,1,f)
%Y Cf. A130916, A134361, A151969.
%K nonn
%O 1,2
%A _N. J. A. Sloane_, Aug 23 2009; corrected Mar 07 2012
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