548591

Properties

Appears in sequences

• Expansion of (2/(3*sqrt(1-4*z)-1+4*z))*((1-sqrt(1-4*z))/(2*z))^k with k=8.at n=8A172065
• a(n) = Sum_{k=0..n} C(n+k,n-k)*C(2*n-k,k).at n=8A183160
• Array: row n shows the coefficients of the characteristic polynomial of the n-th principal submatrix of the symmetric matrix A202674 based on (1,3,5,7,9,...); by antidiagonals.at n=39A202675
• Number of 4 X n 0..1 arrays with rows unimodal and columns nondecreasing.at n=15A225011
• Prime numbersat n=45213