246840

Appears in sequences

• Number of n-tuples of elements e_1,e_2,...,e_n in the alternating group A_4 such that the subgroup generated by e_1,e_2,...,e_n is A_4.at n=4A071765
• a(n) = exp(-1) * (n+1)! * Sum_{i>j>=0} j^n/i!.at n=6A102244
• Number of base 20 n-digit numbers with adjacent digits differing by three or less.at n=6A126488
• 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), (0, 1, 1), (1, 0, 1), (1, 1, -1)}.at n=9A150659
• Number of n X 5 0..1 arrays avoiding 0 0 0 and 0 1 1 horizontally and 0 0 0 and 1 0 1 vertically.at n=7A207782