-983

Appears in sequences

• a(n) = -n^2 + 9*n + 53.at n=37A126665
• 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=14A226927
• First differences of number of active (ON, black) cells in n-th stage of growth of two-dimensional cellular automaton defined by "Rule 209", based on the 5-celled von Neumann neighborhood.at n=21A270894
• First differences of number of active (ON, black) cells in n-th stage of growth of two-dimensional cellular automaton defined by "Rule 481", based on the 5-celled von Neumann neighborhood.at n=23A272458
• Expansion of 1/(1 + x * Sum_{k>=1} prime(k)*x^k).at n=18A307899
• a(n) = A134028(A323782(n)): Primes and negated primes such that the reverse of the balanced ternary representation is a prime.at n=44A323783
• a(n) = (prime(n)^2 - prime(n-1)*prime(n+1))/2, n >= 3.at n=43A342567