-380

Appears in sequences

• Determinant of rank n matrix of 1..n^2 filled successively along antidiagonals.at n=37A069480
• Triangle of coefficients, read by rows, where T(n,k) is the coefficient of x^n*y^k in f(x,y) that satisfies f(x,y) = 1/(1-x) - x^2/(1-x)^2 + xy*f(x,y)^2.at n=58A086610
• n times the coefficient of x^n in log[1 + sum(k>=0, x^2^k)].at n=28A092462
• Row sums of A104975.at n=34A104976
• Row sums of A104975.at n=35A104976
• Bi-diagonal inverse of (2n)!/(2k)!.at n=64A119830
• Triangle read by rows: T(r,c)=T(r,c-1)+T(r,c+1)+T(r-1,c-1).at n=51A129394
• Triangle read by rows: T(r,c)=T(r,c-1)+T(r,c+1)+T(r-1,c-1).at n=61A129394
• a(2*n) = A000217(n), a(2*n+1) = -2*A000217(n).at n=39A131259
• a(n) = a(n-2) - (a(n-1) - a(n-2)) if (n mod 2) = 0, otherwise a(n) = a(n-1) - (a(n-3) - a(n-4)), with a(0) = 0, a(1) = 1, a(2) = -1, a(3) = 2.at n=29A135690
• A129065 with v=x instead of v=1: recursive polynomial coefficient triangle.at n=11A136452
• Define E(n) = Sum_{k >= 0} (-1)^floor(k/3)*k^n/k! for n = 0,1,2,... . Then E(n) is an integral linear combination of E(0), E(1) and E(2). This sequence lists the coefficients of E(0).at n=9A143628
• Coefficients of a normalized Schwarzian derivative generating the Neretin polynomials: S(f) = (x^2/6) { D^2 log(f(x)) - (1/2) [D log(f(x))]^2 }.at n=36A145900
• a(n) = 4 - 3*2^n.at n=7A165751
• A symmetrical triangle sequence: T(n, k) = q^k + q^(n-k) - q^n, with q=2.at n=47A176224
• A symmetrical triangle sequence: T(n, k) = q^k + q^(n-k) - q^n, with q=2.at n=52A176224
• a(0)=0; if a(n-1) is odd, a(n) = n + a(n-1), otherwise a(n) = n - a(n-1).at n=40A226940
• Difference between sums of quadratic residues and non-residues modulo n that are coprime to n.at n=59A255643
• First differences of number of active (ON, black) cells in n-th stage of growth of two-dimensional cellular automaton defined by "Rule 291", based on the 5-celled von Neumann neighborhood.at n=11A271132
• First differences of number of active (ON, black) cells in n-th stage of growth of two-dimensional cellular automaton defined by "Rule 422", based on the 5-celled von Neumann neighborhood.at n=39A272088