-1373

Appears in sequences

• Irregular triangle read by rows: coefficients of Olinde Rodrigues recursive polynomial for inversions of permutations applied to Bonnaci type polynomials: x - 1, x^2 - x - 1, x^3 - x^2 - x - 1, etc.at n=63A133333
• Values of n such that L(7) and N(7) are both prime, where L(k) = (n^2+n+1)*2^(2*k) + (2*n+1)*2^k + 1, N(k) = (n^2+n+1)*2^k + n.at n=20A226927
• Values of n such that L(8) and N(8) are both prime, where L(k) = (n^2+n+1)*2^(2*k) + (2*n+1)*2^k + 1, N(k) = (n^2+n+1)*2^k + n.at n=6A226928
• First differences of number of active (ON, black) cells in n-th stage of growth of two-dimensional cellular automaton defined by "Rule 97", based on the 5-celled von Neumann neighborhood.at n=21A270155
• First differences of number of active (ON, black) cells in n-th stage of growth of two-dimensional cellular automaton defined by "Rule 307", based on the 5-celled von Neumann neighborhood.at n=21A271167
• a(n) = -n^2 + 21*n - 1.at n=48A332884
• G.f. A(x) satisfies Sum_{n=-oo..+oo} x^n * (1 - A(x)^n)^(n+2) = 0.at n=7A378585