55681

Properties

Appears in sequences

• Fifth term of weak prime sextet: p(m-3)-p(m-4) < p(m-2)-p(m-3) < p(m-1)-p(m-2) < p(m)-p(m-1) < p(m+1)-p(m).at n=17A054832
• Leading diagonal of triangle in A072467.at n=29A072468
• A014486-indices of binary trees whose left and right subtree are identical.at n=37A083938
• Expansion of (1+3*x)/(1-2*x-7*x^2).at n=8A096980
• Primes of the form pq - 6, where p and q are consecutive primes.at n=19A099775
• Integers with mutual residues of 10.at n=3A110383
• Primes of the form k^2 + k + 55661, with k >= 0.at n=4A116206
• Primes of the form prime(x)*prime(x+1) - (prime(x+1)-prime(x)).at n=11A140120
• Greatest prime factor of 2*n^4 + 1.at n=16A140538
• Nonstandard Jacobi primes.at n=10A275879
• Decimal representation of the diagonal from the corner to the origin of the n-th stage of growth of the two-dimensional cellular automaton defined by "Rule 397", based on the 5-celled von Neumann neighborhood.at n=32A288010
• Primes p such that p - 3 divides 3^p - 3.at n=39A302988
• Odd integers k>=5 such that 2^((k-1)/2)-1 == 0 (mod k*(k-3)/2).at n=7A337848
• Prime numbersat n=5651