-1023

Appears in sequences

• a(n) = 1 - n^5.at n=4A024003
• a(n) = 1 - n^10.at n=2A024008
• Determinant of the n X n tridiagonal matrix M with the elements on the diagonals equal to 1, except M(n,n-1)=M(n-1,n)=n.at n=30A080322
• Odd-indexed terms of the binomial transform equals 1 and the even-indexed terms of the second binomial transform equals 1.at n=10A090158
• Riordan array (1/(1+2x), x/(1+x)).at n=56A103316
• Inverse of a triangle of pyramidal numbers.at n=45A110814
• Riordan array (1/(1+3x+2x^2),x/(1+3x+2x^2)).at n=45A111806
• Triangle T that satisfies the matrix products: C*[T^-1]*C = T and T*[C^-1]*T = C, where C is Pascal's triangle.at n=39A118801
• Triangle T that satisfies the matrix products: C*[T^-1]*C = T and T*[C^-1]*T = C, where C is Pascal's triangle.at n=56A118801
• The triangle K referred to in A038200, read along rows.at n=56A126713
• Inverse of number triangle A(n,k) = 1/(2*2^n-1) if k <= n <= 2k, 0 otherwise.at n=64A127803
• a(n) = (-1)^n*n*(n-2).at n=32A131386
• Expansion of (1-5*x-x^2+x^3)/((1+x)*(1-x)^3).at n=31A141354
• Triangle T(n,k) = (-1)^k * A119258(n,k) read by rows, 0 <= k <= n.at n=41A145661
• A triangle of polynomial coefficients: p(x,n)=-(ChebyshevU[n, x] - ((x + 1)^n - (1 - x)^n)); sp(x,n) = p(x, n) + x^n*p(1/x, n).at n=53A155994
• The n-th term of the n-th Dirichlet self-convolution equals n^2.at n=32A163591
• Triangle T(n, k) = c(n, q)/c(k, q) if k <= floor(n/2), otherwise c(n, q)/c(n-k, q), where c(n, q) = Product_{j=1..n} (1 - q^j) and q = 4, read by rows.at n=16A174389
• Triangle T(n, k) = c(n, q)/c(k, q) if k <= floor(n/2), otherwise c(n, q)/c(n-k, q), where c(n, q) = Product_{j=1..n} (1 - q^j) and q = 4, read by rows.at n=19A174389
• a(n) = (-1)^n * (1 - 2^n).at n=10A225883
• Triangle read by rows: the negative terms of A163626.at n=25A245602