151680

Appears in sequences

• Triangle of f-vectors of the simplicial complexes dual to the permutohedra of type B_n.at n=25A145901
• Number of multisets of nonempty words with a total of n letters over 5-ary alphabet such that within each word every letter of the alphabet is at least as frequent as the subsequent alphabet letter.at n=9A292720
• a(n) is the number of interior points in the n-th figure shown in A255011 (meaning the figure with 4n points on the perimeter), counted with multiplicity.at n=11A334697
• Primitive terms in A066192: number k such that k is a term of A066192 and k/2 is not.at n=30A383428