124097

Properties

Appears in sequences

• A puzzle called "The hidden prime".at n=1A187399
• Number of (n+1) X 3 0..3 arrays with every 2 X 2 subblock having one, two or four distinct values, and new values 0..3 introduced in row major order.at n=3A210055
• Number of (n+1)X5 0..3 arrays with every 2X2 subblock having one, two or four distinct values, and new values 0..3 introduced in row major order.at n=1A210057
• T(n,k)=Number of (n+1)X(k+1) 0..3 arrays with every 2X2 subblock having one, two or four distinct values, and new values 0..3 introduced in row major order.at n=11A210061
• T(n,k)=Number of (n+1)X(k+1) 0..3 arrays with every 2X2 subblock having one, two or four distinct values, and new values 0..3 introduced in row major order.at n=13A210061
• a(n) is the first number k such that the n Collatz runs starting at the consecutive numbers k, k+1, ..., k+n-1 all have the same prime-valued height while the runs starting at k-1 and k+n have nonprime heights.at n=12A339773
• Prime numbersat n=11656