%I #6 Jan 15 2018 15:46:58
%S 487856,694103,771084,836254,1051886,1119347,1122734,1157014,1181077,
%T 1591742,1638820,1646819,1820743,1921148,1945355,2001782,2026571
%N Numbers m such that all 10*m+d_1, 100*m+d_2 and 1000*m+d_3 are composite, where d_i are any i-digit numbers of A136333.
%C A subsequence A163398 satisfying an additional requirement on the 1000*m+d_3 compositions.
%e m=487856 is in the sequence because 4878561, 4878563, 4878567, 4878569 from attachment of
%e d_1 = 1 to 9, and 48785611, 48785613, .., 48785697, 48785699 from attachment of
%e d_2 = 11 to 99, and 487856111, 487856113,..., 487856997, 487856999 from
%e attachment of d_3=111 to 999 are all composite.
%Y Cf. A002808.
%K nonn,base
%O 1,1
%A Vladislav-Stepan Malakhovsky and _Juri-Stepan Gerasimov_, Jul 26 2009
%E 13 more terms from _R. J. Mathar_, Aug 07 2009