61645

Appears in sequences

• Floor[n(n-1)(n-2)(n-3)/14].at n=32A011924
• a(n) = n+binomial(2*n-6,n-3)+binomial(2*n-5,n-3)+binomial(n-1,n-3)+Sum_{i=1..n-3} (binomial(n+i-3,n-3)+2*n-i-5).at n=11A274295