109251

Appears in sequences

• a(1)=a(2)=1, a(n) = ceiling(e*a(n-1) - a(n-2)) for n>2.at n=15A258898
• 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=25A371532