-2849

Appears in sequences

• Generalized sum of divisors function.at n=40A002130
• Row sums of number triangle related to the Jacobsthal numbers.at n=38A110325
• a(n) = (-1)^n*n*(n+1)*(2*n-5)/6.at n=20A167386
• Expansion of (1+4*x+x^2) / ((1-x)^3*(1+x)^4).at n=40A229834