Indices of square numbers that are also 18-gonal numbers.

A160970

Indices of square numbers that are also 18-gonal numbers.

Terms

    a(0) =0a(1) =1a(2) =10a(3) =44a(4) =341a(5) =1495a(6) =11584a(7) =50786a(8) =393515a(9) =1725229a(10) =13367926a(11) =58607000a(12) =454115969a(13) =1990912771a(14) =15426575020a(15) =67632427214a(16) =524049434711

External references