OFFSET
0,2
COMMENTS
LINKS
Michael De Vlieger, Table of n, a(n) for n = 0..1628
Hacène Belbachir, Abdelghani Mehdaoui, László Szalay, Diagonal Sums in the Pascal Pyramid, II: Applications, J. Int. Seq., Vol. 22 (2019), Article 19.3.5.
Tony D. Noe, On the Divisibility of Generalized Central Trinomial Coefficients, Journal of Integer Sequences, Vol. 9 (2006), Article 06.2.7.
FORMULA
E.g.f.: exp(3x)*BesselI(0, 2*sqrt(-2)*x).
D-finite with recurrence: n*a(n) + 3*(1-2*n)*a(n-1) + 17*(n-1)*a(n-2) = 0. - R. J. Mathar, Nov 09 2012
MATHEMATICA
CoefficientList[Series[1/Sqrt[1-6x+17x^2], {x, 0, 30}], x] (* Harvey P. Dale, Jun 19 2013 *)
CROSSREFS
KEYWORD
easy,sign
AUTHOR
Paul Barry, Sep 03 2004
STATUS
approved