43349

Appears in sequences

• Numbers n such that 2^n - 21 is prime.at n=29A057202
• Numbers k such that 2^k - 21 is prime.at n=25A096820
• Number of 0..n arrays x(0..4) of 5 elements with zero 4th difference.at n=21A200156
• Number of partitions p of n such that the m(M(p)) is a part, where m = multiplicity, M = the minimum multiplicity of the parts of p.at n=46A240539
• Fundamental discriminants d uniquely characterizing all complex biquadratic fields Q(sqrt(-3),sqrt(d)) which have 3-class group of type (3,3) and second 3-class group isomorphic to SmallGroup(729,37).at n=30A250240