Brilliant numbers (A078972) made of nontrivial runs of identical digits.

Terms

a(0) =22999a(1) =55577a(2) =1166111a(3) =2211133a(4) =2224499a(5) =3377333a(6) =4466333a(7) =5551177a(8) =5555533a(9) =5566999a(10) =5588899a(11) =6622277a(12) =6644333a(13) =6644777a(14) =6660077a(15) =6667799a(16) =7711177a(17) =7711199a(18) =7744111a(19) =7766333a(20) =7771199a(21) =7777999a(22) =7799777a(23) =8866699a(24) =8888777