OFFSET
0,1
LINKS
S. Alikhani and M. A. Iranmanesh, Eccentric connectivity polynomials of an infinite family of dendrimer, Digest J. Nanomaterials and Biostructures, 6 (2011) 253-257.
Index entries for linear recurrences with constant coefficients, signature (11,-42,64,-32).
FORMULA
a(n) = -1446 + 2^n*12132+4^n*(8820*n-9660).
G.f.: 18*(57+454*x+212*x^2)/((1-x)*(1-2*x)*(1-4*x)^2). - Bruno Berselli, Dec 30 2012
MAPLE
a := proc (n) options operator, arrow: -1446+12132*2^n+4^n*(8820*n-9660) end proc: seq(a(n), n = 0 .. 20);
CROSSREFS
KEYWORD
nonn,easy
AUTHOR
Emeric Deutsch, Dec 29 2012
STATUS
approved