24608

Appears in sequences

• Number of rules of a context-free grammar in Chomsky normal form that generates all permutations of n symbols.at n=9A090328
• Number of 3X3X3 triangular 0..n arrays with no element lying outside the (possibly reversed) range delimited by its sw and se neighbors, and every horizontal row having the same average value.at n=22A214541
• Expansion of psi(-x^3) / f(-x) in powers of x where psi(), f() are Ramanujan theta functions.at n=46A271593
• Positions of zeros in A345055, which is the Dirichlet inverse of A011772.at n=46A345053
• Numbers whose binary indices are all squarefree semiprimes.at n=12A371453