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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 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,2

LINKS

Vincenzo Librandi, Table of n, a(n) for n = 1..1000

Index entries for linear recurrences with constant coefficients, signature (1,0,6,-6,0,-1,1).

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

Cf. A204765, A205644, A205672

Sequence in context: A318530 A158133 A094613 * A116208 A211470 A031702

Adjacent sequences:  A207055 A207056 A207057 * A207059 A207060 A207061

KEYWORD

nonn,easy

AUTHOR

Vladimir Joseph Stephan Orlovsky, Feb 14 2012

STATUS

approved

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Last modified April 22 07:26 EDT 2021. Contains 343163 sequences. (Running on oeis4.)