1252451200

Appears in sequences

• One half of triple factorial numbers.at n=8A034000
• a(n) = (n+1)*a(n-3), a(0)=a(1)=a(2)=1 for n>1.at n=25A081406
• Triple factorials n!!!: a(n) = n*a(n-3).at n=26A161474