OFFSET
1,2
COMMENTS
Positions where A256470 is zero or negative.
LINKS
Antti Karttunen, Table of n, a(n) for n = 1..3128
MATHEMATICA
Select[Range@ 170, Count[Range[Prime[#] Prime[# + 1], Prime[# + 1]^2], _?PrimeQ] <= Count[Range[Prime[#]^2, Prime[#] Prime[# + 1]], _?PrimeQ] &] (* Michael De Vlieger, Mar 30 2015 *)
PROG
(Scheme, with Antti Karttunen's IntSeq-library)
CROSSREFS
KEYWORD
nonn
AUTHOR
Antti Karttunen, Mar 30 2015
STATUS
approved