OFFSET
0,3
LINKS
B. N. Cyvin, E. Brendsdal, J. Brunvoll and S. J. Cyvin, Isomers of polyenes attached to benzene, Croatica Chemica Acta, 68 (1995), 63-73, M(x).
MAPLE
U0 := (1-sqrt(1-4*x))/2/x ;
V0 := 1+x*subs(x=x^2, U0) ;
Mb := ( subs(x=x^2, U0)^3 -subs(x=x^4, U0)*subs(x=x^2, V0) -subs(x=x^6, U0) +subs(x=x^6, V0) )/2 ; # (20)
Ma := ( subs(x=x^2, U0)^2*V0^2 -subs(x=x^3, V0)^2 -subs(x=x^4, U0)*subs(x=x^2, V0) +subs(x=x^6, V0) )/2 ; # (21)
M := Mb+Ma ;
taylor(%, x=0, 40) ;
gfun[seriestolist](%) ; # R. J. Mathar, Jul 26 2019
CROSSREFS
KEYWORD
nonn
AUTHOR
N. J. A. Sloane, Aug 11 2006
STATUS
approved