26597

Properties

Appears in sequences

• Number of integers <= 2^n of form 4 x^2 + 4 x y + 5 y^2.at n=18A000076
• Primes p such that q-p = 30, where q is the next prime after p.at n=31A124596
• Triangle of coefficients of polynomials v(n,x) jointly generated with A209168; see the Formula section.at n=50A209169
• Partial sums of the number of active (ON, black) cells in n-th stage of growth of two-dimensional cellular automaton defined by "Rule 361", based on the 5-celled von Neumann neighborhood.at n=33A271416
• Primes that can be generated by the concatenation in base 3, in ascending order, of two consecutive integers read in base 10.at n=33A287300
• Primes p such that if q is the next prime, p+A004086(q) and q+A004086(p) are prime.at n=30A351728
• Number of strict integer partitions with sum <= n that can be linearly combined using nonnegative coefficients to obtain n.at n=49A365311
• a(n) is the least prime p such that n^2 + (p-n)^2 is prime and k^2 + (p-k)^2 is composite for 1 <= k < n.at n=46A376920
• Prime numbersat n=2918