Numbers k such that k + 6^t is semiprime for t = 0 to 9.

Terms

a(0) =61273a(1) =109441a(2) =160213a(3) =274501a(4) =275473a(5) =311593a(6) =360673a(7) =394201a(8) =477181a(9) =486061a(10) =514993a(11) =522085a(12) =617137a(13) =620053a(14) =715477a(15) =725485a(16) =803833a(17) =812677a(18) =847117a(19) =1063585a(20) =1146913a(21) =1182577a(22) =1215865a(23) =1232917a(24) =1409425a(25) =1508113a(26) =1587241a(27) =1768993a(28) =1863073a(29) =1895413