OFFSET
0,6
LINKS
S. Bloch, P. Vanhove, The elliptic dilogarithm for the sunset graph, arXiv preprint arXiv:1309.5865, 2013 (see Eq. (1.1)).
EXAMPLE
q+q^2+q^3+q^4+(24/25)*q^5+q^6+(50/49)*q^7+q^8+q^9+(24/25)*q^10+(120/121)*q^11+q^12+(170/169)*q^13+...
MAPLE
M:=100;
t1:=add( ((-1)^(n-1)/(2*n^2))*(sin(n*Pi/3)+sin(2*n*Pi/3))/(1-q^n), n=1..M)
+ add( ((-1)^(n-1)/(2*n^2))*(sin(n*Pi/3)+sin(2*n*Pi/3))/(1-q^n), n=-M..-1);
t2:=series(t1, q, M);
t3:=series((t2-coeff(t2, q, 0))/sqrt(3), q, M);
t4:=seriestolist(t3);
t5:=map(numer, t4); # A232988
t6:=map(denom, t4); # A232989
CROSSREFS
KEYWORD
nonn,frac
AUTHOR
N. J. A. Sloane, Dec 09 2013
STATUS
approved