-1309

Appears in sequences

• Expansion of (1-x-x^N)/((1-x)(1-x^2)(1-x^3)...(1-x^N)) for N = 7.at n=37A060026
• Expansion of ((1-4*x) + sqrt(1-4*x))/(2*(1-2*x)).at n=8A158495
• Triangle T(n,k) read by rows: coefficient [x^k] of the polynomial sum_{k=0..infinity} (2*k+1)^n*binomial(x,k) / 2^x.at n=56A176668
• Triangle, read by rows, T(n, k) = p(n)/(p(k)*p(n-k)), where p(n) = Product_{j=1..n} A001607(j).at n=59A177693
• Triangle, read by rows, T(n, k) = p(n)/(p(k)*p(n-k)), where p(n) = Product_{j=1..n} A001607(j).at n=61A177693
• 1-gonal pyramidal numbers.at n=20A254749
• Array of higher-order differences of the sequence (-1)^n*A000111(n) read by downward antidiagonals.at n=35A261880