The general form of the recurrences are the a(j), b(j) and n(j) solutions of the 2-equation problem 7*n(j) + 1 = a(j)*a(j) and 9*n(j) + 1 = b(j)*b(j) with positive integer numbers.

A159678

The general form of the recurrences are the a(j), b(j) and n(j) solutions of the 2-equation problem 7*n(j) + 1 = a(j)*a(j) and 9*n(j) + 1 = b(j)*b(j) with positive integer numbers.

Terms

    a(0) =1a(1) =17a(2) =271a(3) =4319a(4) =68833a(5) =1097009a(6) =17483311a(7) =278635967a(8) =4440692161a(9) =70772438609

External references