a(0) = 1; a(n) is obtained by incrementing each digit of a(n-1) by 4.

A061516

a(0) = 1; a(n) is obtained by incrementing each digit of a(n-1) by 4.

Terms

    a(0) =1a(1) =5a(2) =9a(3) =13a(4) =57a(5) =911a(6) =1355a(7) =5799a(8) =9111313a(9) =13555757a(10) =5799911911

External references