126851

Properties

Appears in sequences

• Mountain emirps.at n=36A182721
• Number of (n+1)X(5+1) 0..2 arrays with no element unequal to a strict majority of its horizontal and antidiagonal neighbors, with values 0..2 introduced in row major order.at n=3A231260
• T(n,k)=Number of (n+1)X(k+1) 0..2 arrays with no element unequal to a strict majority of its horizontal and antidiagonal neighbors, with values 0..2 introduced in row major order.at n=31A231263
• Number of (4+1)X(n+1) 0..2 arrays with no element unequal to a strict majority of its horizontal and antidiagonal neighbors, with values 0..2 introduced in row major order.at n=4A231266
• a(n) = Sum_{1 <= i <= j <= k <= m <= n} gcd(i,j,k,m).at n=38A344992
• Primes p such that 5*p+6, 5*p+12, 5*p+18 and 5*p+24 are all primes.at n=39A355577
• Prime numbersat n=11892