22541

Properties

Appears in sequences

• Expansion of (1-4*x)/(1-5*x-x^2).at n=7A015449
• Primes that are palindromic in base 2 (but written here in base 10).at n=37A016041
• Smallest prime equal to the sum of n distinct squares.at n=38A100559
• Triangular array read by rows: see Comments for definition.at n=25A121875
• Primes congruent to 32 mod 61.at n=35A142830
• Primes congruent to 34 mod 71.at n=35A154624
• a(n) = 78*n^2 - 1.at n=16A158771
• Lesser of the Gridgeman pairs in base 2 in increasing order: pairs of primes palindromic in base 2 which differ only in their middle digits.at n=1A246870
• Consider two consecutive primes {p,q} such that P=2p+q and Q=2q+p are both prime. The sequence gives primes Q.at n=43A248483
• Smallest prime modulus p such that there exists a multiplicative-coset Ramsey algebra in n colors over Z/pZ, or 0 if no such prime exists.at n=48A263308
• Partial sums of the number of active (ON, black) cells in n-th stage of growth of two-dimensional cellular automaton defined by "Rule 363", based on the 5-celled von Neumann neighborhood.at n=32A268154
• Primes p such that p+2^3, p+2^5 and p+2^7 are all primes.at n=33A275475
• Prime numbers p such that all prime factors of p+1 and p-1 are smaller than the cube root of p.at n=9A283791
• Expansion of Sum_{k>=0} x^(k*(k+1)/2) * Product_{j=1..k} (1 + x^j)^j.at n=47A306733
• Primes that are the concatenation of a square and a prime that is the concatenation of two squares.at n=22A364359
• Prime numbersat n=2519