-4356

Appears in sequences

• Determinant of n X n matrix defined by m(i,j)=1 if i^2+j^2 is a prime, m(i,j)=0 otherwise.at n=38A071524
• Triangle read by rows: T(n,k) is the coefficient [x^k] of (-1)^n times the characteristic polynomial of the Cartan matrix for the root system D_n.at n=60A129862
• Triangle of coefficients of characteristic polynomials of a special type of Cartan matrix: E_n for E_6,E_7,E_8,E_11 example M(6)/ E_6: {{2, -1, 0, 0, 0, 0}, {-1, 2, -1, 0, 0, 0}, {0, -1, 2, -1, 0, -1}, {0, 0, -1, 2, -1, 0}, {0, 0, 0, -1, 2, 0}, {0, 0, -1, 0, 0, 2}},.at n=60A136600
• Inverse of Fibonacci convolution array A154929.at n=39A154930
• First differences of number of active (ON, black) cells in n-th stage of growth of two-dimensional cellular automaton defined by "Rule 173", based on the 5-celled von Neumann neighborhood.at n=37A270468
• First term of n-th difference sequence of (floor(r*k)), r = -(1+sqrt(5))/2, k >= 0.at n=14A325746
• a(n) = Sum_{k=0..floor(n/10)} (-1)^k * binomial(n-5*k,5*k).at n=21A348310