Indices of centered 11-gonal numbers (A060544) that are also 11-gonal numbers (A051682).

A280072

Indices of centered 11-gonal numbers (A060544) that are also 11-gonal numbers (A051682).

Terms

    a(0) =1a(1) =11a(2) =210a(3) =4180a(4) =83381a(5) =1663431a(6) =33185230a(7) =662041160a(8) =13207637961a(9) =263490718051

External references