OFFSET
1,2
REFERENCES
Martin Gardner, Time Travel and Other Mathematical Bewilderments. Freeman, NY, 1988, p. 22.
Harvey J. Hindin, Stars, hexes, triangular numbers and Pythagorean triples, J. Rec. Math., 16 (1983/1984), 191-193.
N. J. A. Sloane and Simon Plouffe, The Encyclopedia of Integer Sequences, Academic Press, 1995 (includes this sequence).
LINKS
Paolo Xausa, Table of n, a(n) for n = 1..650
Harvey J. Hindin, Stars, hexes, triangular numbers and Pythagorean triples, J. Rec. Math., 16 (1983/1984), 191-193. (Annotated scanned copy)
Simon Plouffe, Approximations de séries génératrices et quelques conjectures, Dissertation, Université du Québec à Montréal, 1992; arXiv:0911.4975 [math.NT], 2009.
Simon Plouffe, 1031 Generating Functions, Appendix to Thesis, Montreal, 1992.
Index entries for linear recurrences with constant coefficients, signature (35,-35,1).
FORMULA
a(n) = 34*a(n-1) - a(n-2) + 4.
G.f.: -x*(x + 1)^2/(x - 1)/(x^2 - 34*x + 1). [from Simon Plouffe, see Maple code].
From Charlie Marion, Aug 03 2005: (Start)
MAPLE
A006062:=-(z+1)**2/(z-1)/(z**2-34*z+1); [Simon Plouffe in his 1992 dissertation for offset zero.]
MATHEMATICA
LinearRecurrence[{35, -35, 1}, {1, 37, 1261}, 20] (* Paolo Xausa, Sep 02 2024 *)
CROSSREFS
KEYWORD
nonn,easy
AUTHOR
N. J. A. Sloane, Jul 11 1991
STATUS
approved