271389

Appears in sequences

• a(n) is the number of permutations of length n that avoid the pattern 321 and the mesh pattern (12, 106) or the same sequence for the mesh patterns (12, 122), (12, 142), (12, 158), (12, 172), (12, 188), (12, 226), (12, 242).at n=14A289453
• Centered cuboctahedral numbers: the number of integer triples (x,y,z) such that max(|x|,|y|,|z|) <= n and |x|+|y|+|z| <= 2n.at n=34A371532