24131

Appears in sequences

• Number of proper factorizations of p1^n*p2^3, where p1 and p2 are distinct primes.at n=20A031126
• a(n) equals floor(Vc(n) - Vs(n)), where Vc(n) is the volume of the cube with side length n and Vs(n) is the volume of the sphere of diameter n.at n=36A057671
• Number of (n+2)X(n+2) 0..1 arrays with no 3x3 subblock diagonal sum 0 and no antidiagonal sum 3 and no row sum 1 and no column sum 1.at n=18A257439
• Semiprimes that are the sum of the first n odd primes for some n.at n=31A274182
• Numbers k such that both k and k+2 are de Polignac numbers (A006285).at n=35A330284
• Numbers that are the sum of eight fourth powers in exactly nine ways.at n=34A345841
• Number of non-subset-sums of strict integer partitions of n.at n=41A365922