Numbers n = x0 x1 x2...x9 such that xi is the number of digits greater than i in n.

Terms

a(0) =1a(1) =10a(2) =21a(3) =22a(4) =100a(5) =210a(6) =220a(7) =311a(8) =321a(9) =332a(10) =333a(11) =1000a(12) =2100a(13) =2200a(14) =3110a(15) =3210a(16) =3320a(17) =3330a(18) =4111a(19) =4211a(20) =4321a(21) =4331a(22) =4422a(23) =4432a(24) =4443a(25) =4444a(26) =10000a(27) =21000a(28) =22000a(29) =31100