57752

Appears in sequences

• Numbers n such that 279*2^n-1 is prime.at n=31A050898
• Number of 2 X 2 matrices having all terms in {1,...,n} and positive even determinant.at n=20A211067
• Expansion of Product_{k>=1} ((1 + x^(2*k-1)) / (1 - x^(2*k-1)))^(2*k-1).at n=20A292038
• Number of integer partitions of n such that the dual of the multiset partition obtained by factoring each part into prime numbers is a weak antichain.at n=45A326978