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%I #8 Dec 15 2023 18:03:19
%S 60,260,1220,1660,1780,3620,4460,4660,6260,6340,6980,7580,11140,13180,
%T 13460,14020,14540,15380,16220,18220,19060,20180,21940,22180,23260,
%U 26420,28780,29620,30980,31660,33860,35540,37220,38620,39860,40580
%N Interprimes which are of the form s*prime, s=20.
%C Interprimes of the form s*prime are in A075277-A075296 ( s = 2 - 21 ). Case s=1 is impossible.
%e 260 is an interprime and 260/20 = 13 is prime.
%t s=20; Select[Table[(Prime[n+1]+Prime[n])/2, {n, 2, 14000}], PrimeQ[ #/s]&]
%t Select[Total[#]/2&/@Partition[Prime[Range[5000]],2,1],PrimeQ[#/20]&] (* _Harvey P. Dale_, Dec 15 2023 *)
%Y Cf. A075277-A075296.
%K easy,nonn
%O 1,1
%A _Zak Seidov_, Sep 12 2002
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