67710

Appears in sequences

• Least positive k such that k * [RSA-640]^n - 1 is prime, where RSA-640 is the 193 decimal digit RSA challenge number A391940(14).at n=26A108573
• Number of nX3 arrays of occupancy after each element moves to some horizontal, vertical or antidiagonal neighbor, without 2-loops.at n=3A221237
• Number of n X 4 arrays of occupancy after each element moves to some horizontal, vertical or antidiagonal neighbor, without 2-loops.at n=2A221238
• T(n,k)=Number of nXk arrays of occupancy after each element moves to some horizontal, vertical or antidiagonal neighbor, without 2-loops.at n=17A221240
• T(n,k)=Number of nXk arrays of occupancy after each element moves to some horizontal, vertical or antidiagonal neighbor, without 2-loops.at n=18A221240