55408

Appears in sequences

• Number of connected graphs on n unlabeled nodes where every block is a complete graph.at n=13A035053
• Numbers k such that 47*2^k-1 is prime.at n=13A050549
• a(n) is the smallest integer >= a(n-1) such that prime(n)*2^a(n)-1 is a prime number.at n=14A258868
• Number of 6-cycles in the n X n knight graph.at n=23A289181