OFFSET
1,1
COMMENTS
Subsequence of A070087.
LINKS
Robert Israel, Table of n, a(n) for n = 1..10000
MAPLE
N:= 1000: # to get all terms < N
V:= Vector(N):
p:= 1:
do
p:= nextprime(p);
if p > N then break fi;
V[[seq(k*p, k=1..N/p)]]:= p
od:
select(t -> V[t] > V[t+1] and not isprime(t), [$1..N-1]); # Robert Israel, Jul 03 2018
MATHEMATICA
With[{nn=250}, Select[Complement[Range[nn], Prime[Range[PrimePi[ nn]]]], FactorInteger[ #][[-1, 1]]>FactorInteger[#+1][[-1, 1]]&]] (* Harvey P. Dale, Jul 14 2016 *)
CROSSREFS
KEYWORD
nonn
AUTHOR
Reinhard Zumkeller, Sep 02 2003
STATUS
approved