A238248 - OEIS

%I #4 Feb 20 2014 15:40:26

%S 43,75,83,85,86,87,91,107,139,147,149,150,151,155,163,165,166,167,169,

%T 170,172,173,174,175,179,181,182,183,187,203,211,213,214,215,219,235,

%U 267,275,277,278,279,283,291,293,294,295,297,298,300,301,302,303,307

%N Numbers m such that A072219(m) = 7.

%C a(n) = A043689(n) + 1.

%H Reinhard Zumkeller, <a href="/A238248/b238248.txt">Table of n, a(n) for n = 1..10000</a>

%o (Haskell)

%o a238248 n = a238248_list !! (n-1)

%o a238248_list = filter ((== 7) . a072219) [1..]

%Y Cf. A000079, A238246, A238247.

%K nonn

%O 1,1

%A _Reinhard Zumkeller_, Feb 20 2014