-3820

Appears in sequences

• Triangle of coefficients of p(x,n) = (1-x)^(n+1)*Sum_{m >= 0} ((3*m+2)^n - (3*m+1)^n)*x^m, read by rows.at n=18A154853
• Expansion of f(-q)^10 / f(-q^5)^2 in power of q where f() is a Ramanujan theta function.at n=21A243939
• Alternating sum of 12-gonal (or dodecagonal) numbers.at n=39A266088