51859

Properties

Appears in sequences

• a(0) = a(1) = 0; thereafter a(n) = 2*a(n-1)*a(n-2) + 1.at n=8A143684
• Number of (n+2)X3 0..1 arrays with every 3X3 subblock having three equal elements in a row horizontally, vertically or nw-to-se diagonally exactly three ways, and new values 0..1 introduced in row major order.at n=16A204374
• Primes p1 such that the sum of 9 consecutive primes, p1+p2+p3+p4+p5+p6+p7+p8+p9, and the three sums (p1+p2+p3), (p4+p5+p6), (p7+p8+p9) are all prime numbers.at n=22A343683
• Prime numbersat n=5306