Lucky numbers that are decimal concatenations of n with n + 5.

Terms

a(0) =49a(1) =1419a(2) =3439a(3) =3843a(4) =4045a(5) =5661a(6) =8085a(7) =110115a(8) =128133a(9) =134139a(10) =164169a(11) =170175a(12) =182187a(13) =188193a(14) =200205a(15) =218223a(16) =224229a(17) =308313a(18) =332337a(19) =362367a(20) =368373a(21) =416421a(22) =422427a(23) =452457a(24) =506511a(25) =578583a(26) =584589a(27) =602607a(28) =686691a(29) =740745