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A207058
Nonnegative values x of solutions (x, y) to the Diophantine equation x^2 + (x+263)^2 = y^2.
7
0, 145, 364, 789, 1564, 2805, 5260, 9765, 16992, 31297, 57552, 99673, 183048, 336073, 581572, 1067517, 1959412, 3390285, 6222580, 11420925, 19760664, 36268489, 66566664, 115174225, 211388880, 387979585, 671285212, 1232065317, 2261311372, 3912537573
OFFSET
1,2
FORMULA
G.f.: x^2*(95*x^5+73*x^4+95*x^3-425*x^2-219*x-145)/((x-1)*(x^6-6*x^3+1)). [Colin Barker, Aug 05 2012]
MATHEMATICA
LinearRecurrence[ {1, 0, 6, -6, 0, -1, 1}, {0, 145, 364, 789, 1564, 2805, 5260}, 40]
CROSSREFS
KEYWORD
nonn,easy
AUTHOR
STATUS
approved