Least positive integer coefficients of power series A(x) such that the coefficients of A(x)^2 + A(x) - 1 consist entirely of squares.
A083352
Least positive integer coefficients of power series A(x) such that the coefficients of A(x)^2 + A(x) - 1 consist entirely of squares.
Terms
- a(0) =1a(1) =3a(2) =9a(3) =9a(4) =3a(5) =15a(6) =33a(7) =18a(8) =36a(9) =24a(10) =75a(11) =96a(12) =51a(13) =96a(14) =159a(15) =165a(16) =255a(17) =168a(18) =27a(19) =60a(20) =333a(21) =255a(22) =66a(23) =18a(24) =441a(25) =291a(26) =735a(27) =258a(28) =390a(29) =696
External references
- oeis: A083352