43872

Appears in sequences

• Triangle T(n,k) = (2*n-k-1)*T(n-1,k-1) + (k+1)*T(n-1,k), with T(n,1) = T(n,n) = 1, 1 <= k <= n, read by rows.at n=30A156139
• S(n) - the sum of the areas of the polygons constructed from connecting with a straight line all identical members in the multiplicative table modulo n (finite field).at n=38A157023
• a(n) = (n+1)*(n^3+15*n^2+74*n+132)/12.at n=23A217947
• Number of ways to write n as an ordered sum of 6 nonprime numbers.at n=41A341483