42576

Appears in sequences

• Number of n-node animals on f.c.c. lattice.at n=7A007199
• a(n) = Sum_{k=0..n} k*C(n,k)^2*C(n+k,k)^3, where C := binomial.at n=3A112035
• a(n) = Sum_{i+j+k=n, i,j,k >= 1} tau(i)*tau(j)*tau(k), where tau() = A000005().at n=46A191829
• Expansion of Product_{k>=0} ((1+x^(4*k+1))/(1-x^(4*k+1)))^2.at n=36A261650
• Inverse Euler transform of n^n.at n=5A305754
• Inverse Weigh transform of (-n)^n.at n=5A306154
• Centered pentagonal numbers that are abundant.at n=22A382696