a(0) = 0. Successive terms are double the previous, then with their digits incremented by 1.

A337016

a(0) = 0. Successive terms are double the previous, then with their digits incremented by 1.

Terms

    a(0) =0a(1) =1a(2) =3a(3) =7a(4) =25a(5) =61a(6) =233a(7) =577a(8) =2265a(9) =5641a(10) =22393a(11) =55897a(12) =2228105a(13) =5567321a(14) =22245753a(15) =555102617a(16) =2221316345a(17) =55537437101a(18) =222185985313

External references