a(0) = 1; a(n) is obtained by incrementing each digit of a(n-1) by 6.

A061521

a(0) = 1; a(n) is obtained by incrementing each digit of a(n-1) by 6.

Terms

    a(0) =1a(1) =7a(2) =13a(3) =79a(4) =1315a(5) =79711a(6) =13151377a(7) =79711791313

External references