58217

Properties

Appears in sequences

• Primes of the form 2*k*prime(k) + 1.at n=22A062403
• Primes of the form 10n^2+6n+1.at n=27A154409
• Partial sums of A065641.at n=18A174202
• Equals one maps: number of n X 4 binary arrays indicating the locations of corresponding elements equal to exactly one of their horizontal, vertical and antidiagonal neighbors in a random 0..1 n X 4 array.at n=4A220458
• Equals one maps: number of nX5 binary arrays indicating the locations of corresponding elements equal to exactly one of their horizontal, vertical and antidiagonal neighbors in a random 0..1 nX5 array.at n=3A220459
• T(n,k)=Equals one maps: number of nXk binary arrays indicating the locations of corresponding elements equal to exactly one of their horizontal, vertical and antidiagonal neighbors in a random 0..1 nXk array.at n=31A220461
• T(n,k)=Equals one maps: number of nXk binary arrays indicating the locations of corresponding elements equal to exactly one of their horizontal, vertical and antidiagonal neighbors in a random 0..1 nXk array.at n=32A220461
• a(2)=8; thereafter a(n) = smallest number m such that a(n-1)+m = (a(n-1) followed by the leading digit of m).at n=4A224759
• Prime numbersat n=5897