191184

Appears in sequences

• Gaussian column reduction of Hankel matrix for central Delannoy numbers.at n=48A118384
• Number of 3 X n 0..2 arrays with no element equal to any value at offset (-2,-2) (-1,-2) or (0,-1) and new values introduced in order 0..2.at n=11A275143
• a(n) = 2*a(n-1) - a(n-3) + a(floor(n/2)), where a(0) = 1, a(1) = 2, a(2) = 3.at n=21A298403
• a(n) = Sum_{k=0..n} 2^k * binomial(n+3,k) * binomial(n+3,k+3).at n=6A387338