49246

Appears in sequences

• [ exp(1/5)*n! ].at n=7A030973
• Number of 3 X 3 determinants with elements from {0,...,n} and having the value zero.at n=3A059976
• a(n) = n^3 - n^2 - n - 1.at n=37A083074
• a(n) = sigma_3(n) - sigma_2(n) - sigma_1(n).at n=36A092350
• Number of (n+2)X3 0..3 arrays with each 3X3 subblock singular.at n=0A184660
• T(n,k)=Number of (n+2)X(k+2) 0..3 arrays with each 3X3 subblock singular.at n=0A184663
• Consider the figure made up of a row of n adjacent congruent rectangles, with diagonals of all possible rectangles drawn; a(n) = number of interior vertices where exactly two lines cross.at n=25A334701