136164

Appears in sequences

• a(n) = (Sum_{j=1..3} StirlingS1(3,j)*(2^j-1)^n)/3!.at n=7A341590
• Values of terms in A380837 which are not in A379066.at n=38A380838
• a(n) = Sum_{k=0..n} binomial(3*n+2,k) * binomial(3*n-k,n-k).at n=5A386844