-790

Appears in sequences

• a(1) = 0, a(2) = -2; for n > 2, a(n) + a(n-2) - a(n-3) - a(n-5) - ... - a(n-p) = (-1)^(n+1)*n if n is prime, otherwise = 0, where p = largest prime < n.at n=43A002120
• Expansion of x^2*(-3+4*x)/(1-x^3+x^4).at n=49A110061
• McKay-Thompson series of class 32d for the Monster group.at n=85A112172
• Fluctuations of the number of cubefree integers not exceeding 2^n.at n=65A160115
• Reciprocals of the deviation of continued fraction convergents from Pi.at n=1A171245
• a(n) = n^2 - (n-1)^2 - (n-2)^2 - ... - 1^2.at n=14A179297
• G.f.: (1 - x/(1 - x^2/(1 - x^3/(1 - x^4/(1 - ...))))) / (1 + x/(1 + x^2/(1 + x^3/(1 + x^4/(1 + ...))))), a continued fraction.at n=27A285635
• Expansion of 1/(1 + x + x/(1 + x^2 + x^2/(1 + x^3 + x^3/(1 + x^4 + x^4/(1 + ...))))), a continued fraction.at n=21A292854
• G.f.: A(x,q) = sqrt( Q(x,q) / Q(x,-q) ), where Q(x,q) = Sum_{n=-oo..+oo} (x - q^n)^n.at n=166A292929
• Row 4 in rectangular array A292929.at n=13A294067