-2879

Appears in sequences

• Expansion of (1 + x) / (5*x^2 - 2*x + 1).at n=10A116483
• a(n) = A118443(n)/(n+1), where A118443 is the row sums of triangle A118441.at n=10A118444
• Values of n such that L(9) and N(9) 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=34A226929
• First differences of number of active (ON, black) cells in n-th stage of growth of two-dimensional cellular automaton defined by "Rule 485", based on the 5-celled von Neumann neighborhood.at n=31A272505
• G.f. A(x) satisfies: A(x) = 1 / (1 - x + x^4 * A(x)).at n=21A349048