A032646 - OEIS

%I #11 Jul 28 2021 04:22:13

%S 5,11,17,21,33,45,51,57,59,63,87,89,93,107,117,129,137,153,179,183,

%T 191,197,207,219,225,227,245,255,263,269,287,291,299,351,371,377,407,

%U 413,423,425,435,441,485,495,513,543,551,567,569,579,641,647,659,669,675

%N Numbers k such that k concatenated with k+6 is a lucky number.

%Y Cf. A000959, A032656.

%K nonn,base

%O 1,1

%A _Patrick De Geest_, May 15 1998

%E More terms from _Sascha Kurz_, Mar 24 2002