3457440

Appears in sequences

• a(n) = (n-1)! * Sum_{k=1..n} floor(k^k/k!).at n=7A054202
• a(n) = Product_{k=0..n} C(n+k+2, n+2).at n=4A120248
• Primitive bicentric quadrilaterals defined in A219192.at n=5A219193