25206

Appears in sequences

• Equal count of primes congruent to 1 mod 4 and 3 mod 4 associated with primes in A007351 (the zero beginning the sequence indicates the prime 2).at n=17A092198
• Number of length n+4 0..4 arrays with no five consecutive terms having the maximum of any two terms equal to the minimum of the remaining three terms.at n=2A249840
• T(n,k)=Number of length n+4 0..k arrays with no five consecutive terms having the maximum of any two terms equal to the minimum of the remaining three terms.at n=17A249844
• Number of length 3+4 0..n arrays with no five consecutive terms having the maximum of any two terms equal to the minimum of the remaining three terms.at n=3A249847
• a(n) is the number of edges formed by n-secting the angles of a hexagon.at n=38A335735
• Number of nonisomorphic vertex-transitive tournaments of order 2n-1.at n=19A346179
• Expansion of g.f. A(x) satisfying Sum_{n=-oo..+oo} (x^n + A(x))^n = 1 + 3*Sum_{n>=1} x^(n^2).at n=13A370032