-7408

Appears in sequences

• sin(sin(arctanh(x)))=x-4/5!*x^5-136/7!*x^7-7408/9!*x^9-644416/11!*x^11...at n=4A012052
• exp(sinh(arctan(x)))=1+x+1/2!*x^2-3/4!*x^4-4/5!*x^5+21/6!*x^6...at n=9A012247
• McKay-Thompson series of class 12B for the Monster group.at n=39A112148
• Riordan array T((1-x)^(-2) | 2x-1) read by rows.at n=49A181690
• McKay-Thompson series of class 12B for the Monster group with a(0) = 5.at n=39A187146
• McKay-Thompson series of class 12B for the Monster group with a(0) = -4.at n=39A187147
• McKay-Thompson series of class 12B for the Monster group with a(0) = -3.at n=39A187148
• G.f. A(x,y) satisfies: Sum_{n=-oo...+oo} (x^n + y)^n = exp( (1-y) * A(x,y) ) / (1-y), where A(x,y) = Sum_{n>=1} x^n/n * Sum{k=0..n-1} T(n,k)*y^k, written here as a flattened triangle of coefficients T(n,k) read by rows.at n=30A321600