-1137

Appears in sequences

• Values of n such that L(13) and N(13) 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=14A227516
• First differences of number of active (ON, black) cells in n-th stage of growth of two-dimensional cellular automaton defined by "Rule 189", based on the 5-celled von Neumann neighborhood.at n=17A270680
• The residue of p(n) modulo q(n) in the interval (-q(n)/2, q(n)/2], where p(n) = A000041(n) and q(n) = A000009(n).at n=47A386703