Near-repdigit semiprimes with 5 as repeated digit.

Terms

a(0) =155a(1) =355a(2) =505a(3) =515a(4) =535a(5) =545a(6) =551a(7) =553a(8) =554a(9) =559a(10) =565a(11) =655a(12) =755a(13) =955a(14) =1555a(15) =4555a(16) =5155a(17) =5255a(18) =5455a(19) =5515a(20) =5545a(21) =5554a(22) =5585a(23) =5755a(24) =5855a(25) =7555a(26) =50555a(27) =53555a(28) =55355a(29) =55551