OFFSET
1,2
COMMENTS
Also nonnegative integers y in the solution to 10*x^2 - 5*y^2 + 4*x + 3*y + 2 = 0, the corresponding values of x being A133328.
LINKS
Colin Barker, Table of n, a(n) for n = 1..436
Index entries for linear recurrences with constant coefficients, signature (1,39202,-39202,-1,1).
FORMULA
The bisections modulo 2 satisfy the same recurrence relation: a(n+2) = 39202*a(n+1) - a(n) - 11760.
G.f.: -x*(17*x^4+8160*x^3-20178*x^2+240*x+1) / ((x-1)*(x^2-198*x+1)*(x^2+198*x+1)). - Colin Barker, Dec 05 2014
PROG
(PARI) Vec(-x*(17*x^4+8160*x^3-20178*x^2+240*x+1)/((x-1)*(x^2-198*x+1)*(x^2+198*x+1)) + O(x^100)) \\ Colin Barker, Dec 05 2014
CROSSREFS
KEYWORD
nonn,easy
AUTHOR
Richard Choulet, Oct 18 2007
EXTENSIONS
More terms from Colin Barker, Dec 05 2014
STATUS
approved