255161

Appears in sequences

• Positions of powers of 2 in A064413 (if it starts at 2).at n=17A064468
• a(n) = sum_{i+j+k=n} (-1)^k*binomial(3*i+2*j+k,k) * (i/(2*j+i)) * binomial(2*j+i,j) *2^(i+j) * Catalan(i).at n=8A153233