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A253297
Primes p for which some multiple k*p > 2*p appears before p does in A098550.
3
5, 7, 13, 17, 23, 29, 41, 67, 83, 97
OFFSET
1,1
COMMENTS
It is conjectured (see A098550) that there are no more terms of the sequence.
Corresponding indices in A098550 are {9, 15, 23, 30, 51, 61, 87, 142, 175, 204}; indices in A000040 are {3, 4, 6, 7, 9, 10, 13, 19, 23, 25}.
A098550(A098551(a(n)) - 2) / a(n) > 2. - Reinhard Zumkeller, Dec 30 2014
PROG
(Haskell)
a253297 n = a253297_list !! (n-1)
a253297_list = f a098550_list where
f (u:vs@(_:v:_)) = if a010051' v == 1 && div u v > 2
then v : f vs else f vs
-- Reinhard Zumkeller, Dec 30 2014
CROSSREFS
KEYWORD
nonn
AUTHOR
L. Edson Jeffery, Dec 29 2014
STATUS
approved