-902

Appears in sequences

• Expansion of Product_{k>=1} (1 - x^k)^11.at n=12A010819
• a(n) = (n+1)*(2-n)/2.at n=43A080956
• n times the coefficient of x^n in log[1 + sum(k>=0, x^2^k)].at n=43A092462
• McKay-Thompson series of class 36h for the Monster group.at n=76A112177
• Expansion of (chi(-x) * chi(-x^19))^2 in powers of x where chi() is a Ramanujan theta function.at n=35A134005
• The n-th term of the n-th Dirichlet self-convolution equals n^2.at n=43A163591
• Expansion of g.f. 1+x+(1+3*x+x^2)/(1+x)^3.at n=42A201163
• Second differences of A038580.at n=46A245175
• G.f.: Sum_{n=-oo..+oo} x^n * (1 - x^n)^(3*n).at n=43A268298
• Coefficients in the expansion Product_{ n>=1 } (1-q^(2n-1))^2/(1-q^(2n))^2.at n=15A274621
• Expansion of Product_{k>=1} 1/(1 - x^(2*k) + x^(3*k)).at n=25A276526
• Expansion of the series reversion of -1 + 1/(1 - x/(1 - x/(1 - x^2/(1 - x^2/(1 - x^3/(1 - x^3/(1 - ...))))))), a continued fraction.at n=7A291378
• Expansion of Product_{k>=1} 1/(1 + k^k*x^k)^k.at n=4A295245
• Expansion of 1 / (1 + Sum_{i>=1, j>=1} x^(i*prime(j))).at n=49A327800
• a(n) = Sum_{k=1..n} (-1)^(k+1) * lcm(n,k) / gcd(n,k).at n=42A333493
• Expansion of e.g.f. exp(x)^( cos(x) + sin(x) ).at n=7A354545
• G.f. satisfies A(x) = 1 + x/A(x)^2*(1 + 1/A(x)).at n=4A364396