40276

Appears in sequences

• Catalan transform of the 3-Fibonacci sequence A006190.at n=8A143646
• Number of 5-step one space at a time bishop's tours on an n X n board summed over all starting positions.at n=22A187158
• Bases b where exactly eight primes p with p < b exist such that p is a base-b Wieferich prime.at n=17A325884
• Numbers k >= 2 such that (S(k) - I(k)) / (k - 1) is an integer, where S(k) = Sum_{i=2..k} A007918(i) and I(k) = Sum_{i=2..k} A007917(i).at n=12A383358