A375197 - OEIS

%I #12 Aug 05 2024 08:45:00

%S 4,6,12,30,60,72,180,192,240,420,432,1152,2310,2592,3360,6300,7560,

%T 9240,15360,21600,23040,26880,55440,100800,110880,138240,180180,

%U 241920,264600,345600,415800,453600,737280,786432,995328,1088640,1921920,1940400,2116800,3456000

%N Terms k in A025487 such that k-1 and k+1 are twin primes.

%H Amiram Eldar, <a href="/A375197/b375197.txt">Table of n, a(n) for n = 1..10000</a>

%F a(n) = A025487(A375198(n)).

%t Select[Cases[Import["https://oeis.org/A025487/b025487.txt", "Table"], {_, _}][[;; , 2]], And @@ PrimeQ[# + {-1, 1}] &]

%Y Intersection of A014574 and A025487.

%Y Subsequence of A344385.

%Y A068507 is a subsequence.

%Y Cf. A001097, A001359, A006512, A344384, A375198.

%K nonn

%O 1,1

%A _Amiram Eldar_, Aug 04 2024