56699

Appears in sequences

• a(n) = (2*n - 3)n^2.at n=31A015238
• Number of 5-step S, NW and NE-moving king's tours on an n X n board summed over all starting positions.at n=30A187379
• Maximal non-semiprime number which is a "preprime" of the n-th kind (defined in comment in A247395).at n=40A247834
• Starts of runs of at least 3 consecutive odd numbers whose prime factors are all prime-indexed primes.at n=30A357168
• Starts of runs of at least 4 consecutive odd numbers whose prime factors are all prime-indexed primes.at n=4A357169