Composite and every divisor (except 1) contains the digit 6.

Terms

a(0) =16043a(1) =16409a(2) =17621a(3) =26569a(4) =36661a(5) =37637a(6) =39467a(7) =40267a(8) =40669a(9) =41663a(10) =42869a(11) =45761a(12) =46297a(13) =46421a(14) =46909a(15) =52643a(16) =61289a(17) =64721a(18) =64789a(19) =64843a(20) =65209a(21) =69169a(22) =71623a(23) =72361a(24) =75469a(25) =76121a(26) =76987a(27) =91769a(28) =96521a(29) =97661