67725

Appears in sequences

• Numbers k such that 2*k-1, 4*k-1, 6*k-1 and 8*k-1 are primes.at n=33A124487
• Number of n X 4 0..2 arrays with every 0 next to a 1 and every 1 next to a 2 horizontally, diagonally or antidiagonally.at n=2A232147
• T(n,k)=Number of nXk 0..2 arrays with every 0 next to a 1 and every 1 next to a 2 horizontally, diagonally or antidiagonally.at n=17A232149
• Number of 3Xn 0..2 arrays with every 0 next to a 1 and every 1 next to a 2 horizontally, diagonally or antidiagonally.at n=3A232151