A145699 - OEIS

A145699

Numbers n such that there exists x in N with (x+1)^3-x^3=37*n^2

1, 589, 347509, 205029721, 120967187881, 71370435820069, 42108436166652829, 24843905967889349041, 14657862412618549281361, 8648113979538976186653949, 5102372590065583331576548549, 3010391180024714626653976989961, 1776125693841991564142514847528441

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OFFSET

1,2

LINKS

Table of n, a(n) for n=1..13.

Index entries for linear recurrences with constant coefficients, signature (590, -1).

FORMULA

a(n+2)=590*a(n+1)-a(n)

G.f.: (1-x)/(x^2-590*x+1) [From Harvey P. Dale, Sep 14 2011]

MATHEMATICA

LinearRecurrence[{590, -1}, {1, 589}, 20] (* Harvey P. Dale, Sep 14 2011 *)

CROSSREFS

Sequence in context: A185884 A115487 A210894 * A203628 A204752 A320713

Adjacent sequences: A145696 A145697 A145698 * A145700 A145701 A145702

KEYWORD

easy,nonn

AUTHOR

Richard Choulet, Oct 16 2008

EXTENSIONS

More terms from Harvey P. Dale, Sep 14 2011

STATUS

approved