72492

Appears in sequences

• Number of lines through exactly 2 points of an n X n grid of points.at n=25A018809
• Number of subpartitions of partition P=[0,0,1,1,1,2,2,2,2,3,3,3,3,3,4,...] (A052146).at n=26A121431
• Diagonal of square array A136737, one place above the main diagonal.at n=5A136741
• Number of walks within N^3 (the first octant of Z^3) starting at (0,0,0) and consisting of n steps taken from {(-1, -1, -1), (-1, -1, 1), (-1, 0, 0), (0, -1, 1), (1, 1, 0)}.at n=10A149133
• a(n) = ceiling(n!*exp(-n)).at n=14A174300