A105740 For n>2, a(n) > 0 is such that a(n-1)^2+4*a(n-2)*a(n) is a minimal square, a(1)=1,a(2)=7.

1, 7, 8, 12, 8, 4, 4, 3, 1, 2, 3, 2, 1, 1, 2, 3, 2, 1, 1, 2, 3, 2, 1, 1, 2, 3, 2, 1, 1, 2, 3, 2, 1, 1, 2, 3, 2, 1, 1, 2, 3, 2, 1, 1, 2, 3, 2, 1, 1, 2, 3, 2, 1, 1, 2, 3, 2, 1, 1, 2, 3, 2, 1, 1, 2, 3, 2, 1, 1, 2, 3, 2, 1, 1, 2, 3, 2, 1, 1, 2, 3, 2, 1, 1, 2, 3, 2, 1, 1, 2, 3, 2, 1, 1, 2, 3, 2, 1, 1, 2, 3, 2

Offset

1,2

Links

Table of n, a(n) for n=1..102.

Index entries for linear recurrences with constant coefficients, signature (0,0,0,0,1).

Crossrefs

Cf. A076839, A105736 - A105746.

Sequence in context: A098731 A348784 A294483 * A377886 A050796 A106630

Adjacent sequences: A105737 A105738 A105739 * A105741 A105742 A105743

Keyword

nonn

Author

Zak Seidov, Apr 19 2005

Extensions

More terms from Ray Chandler, May 17 2024

Status

approved