Indices k of perfect squares among 17-gonal numbers A051869(k) = k*(15*k - 13)/2.
A137880
Indices k of perfect squares among 17-gonal numbers A051869(k) = k*(15*k - 13)/2.
Terms
- a(0) =1a(1) =49a(2) =225a(3) =23409a(4) =108241a(5) =11282881a(6) =52171729a(7) =5438325025a(8) =25146664929
External references
- oeis: A137880