131063

Properties

Appears in sequences

• Prime preceding the n-th Mersenne prime.at n=5A073715
• a(n) = 3*a(n-1) - a(n-2) - 3*a(n-3) + 2*a(n-4).at n=17A084174
• Primes with a single 0 bit in their binary expansion.at n=35A095078
• Largest prime factor of the odd Catalan number A038003(n).at n=14A120274
• Largest prime factor of the semiprime 2^A165767(n)-A165767(n).at n=3A165769
• a(n) = 4*2^n - 9.at n=14A172252
• Expansion of o.g.f. x*(1 - x + x^2)/(1 -3*x +x^2 +3*x^3 -2*x^4).at n=17A173009
• a(n) is the smallest prime p>2 such that there are 2*n or 2*n+1 positive integers m for which the exponents of 2 and p in the prime power factorization of m! are both powers of 2.at n=13A177378
• Primes of the form 2^t-2^k-1, k>=1.at n=39A181741
• a(n) = 2^n - 9.at n=17A185346
• Primes of the form 4*n^3-9.at n=7A200734
• Primes of the form 8n^2 - 9.at n=34A201859
• Least prime divisor of 2^n - n which does not divide any 2^k - k with 0 < k < n, or 1 if such a primitive prime divisor of 2^n - n does not exist.at n=17A242292
• a(n) = Numerator of (0 followed by 1's) - n/2^n.at n=18A273153
• Decimal representation of the x-axis, from the origin to the right edge, of the n-th stage of growth of the two-dimensional cellular automaton defined by "Rule 670", based on the 5-celled von Neumann neighborhood.at n=16A283607
• Decimal representation of the x-axis, from the origin to the right edge, of the n-th stage of growth of the two-dimensional cellular automaton defined by "Rule 798", based on the 5-celled von Neumann neighborhood.at n=16A284090
• Decimal representation of the x-axis, from the origin to the right edge, of the n-th stage of growth of the two-dimensional cellular automaton defined by "Rule 974", based on the 5-celled von Neumann neighborhood.at n=16A284543
• Primes of the form 2^j - 3^k, for j >= 0, k >= 0.at n=34A321671
• Greatest prime dividing 2^n - n for n>=2; a(1) = 1.at n=17A359684
• a(n) is the least prime p such that p and the next prime > p have exactly n common 1's in their binary expansion.at n=15A374178