Floor[ concatenation of n+4, n+3, n+2, n+1 and n divided by 5].

Terms

a(0) =8642a(1) =10864a(2) =13086a(3) =15308a(4) =17530a(5) =19753a(6) =21975a(7) =222197a(8) =2422219a(9) =26242221a(10) =282624222a(11) =302826242a(12) =323028262a(13) =343230282a(14) =363432302a(15) =383634323a(16) =403836343a(17) =424038363a(18) =444240383a(19) =464442403a(20) =484644424a(21) =504846444a(22) =525048464a(23) =545250484