a(1) = 1; for n>1, a(n) = smallest number > a(n-1) such that last digit of a(n-1) + first digit of a(n) = 3.

A098408

a(1) = 1; for n>1, a(n) = smallest number > a(n-1) such that last digit of a(n-1) + first digit of a(n) = 3.

Terms

    a(0) =1a(1) =2a(2) =10a(3) =30a(4) =31a(5) =200a(6) =300a(7) =301a(8) =2000a(9) =3000a(10) =3001a(11) =20000a(12) =30000a(13) =30001a(14) =200000a(15) =300000a(16) =300001a(17) =2000000a(18) =3000000a(19) =3000001a(20) =20000000a(21) =30000000a(22) =30000001a(23) =200000000a(24) =300000000a(25) =300000001a(26) =2000000000a(27) =3000000000a(28) =3000000001a(29) =20000000000

External references