159317

Appears in sequences

• Number of 6Xn 0..1 arrays with no element equal to more than one of its horizontal and antidiagonal neighbors, with the exception of exactly two elements, and with new values introduced in order 0 sequentially upwards.at n=7A281061
• Bases b where exactly nine primes p with p < b exist such that p is a base-b Wieferich prime.at n=32A325885