44676

Appears in sequences

• Number of solutions to the rook problem on an n X n board having a certain symmetry group (see Robinson for details).at n=8A000899
• Number of 2 X 2 symmetric matrices over Z(n) having nonzero determinant.at n=35A115077
• Record differences for n^2 - phi(n)*sigma(n).at n=38A164876
• a(n) = n*(n-1)*A056219(n+1).at n=16A166870
• a(n) = number of ordered triples (w,x,y) such that w,x,y are all in {0,...,n} and the numbers |w-x|, |x-y|, |y-w| are distinct.at n=36A212963
• sigma(n) is an additive inverse of n modulo phi(n).at n=18A235989
• Number of compositions of n such that the smallest part has multiplicity eight.at n=12A241868
• Partial sums of the number of active (ON, black) cells in n-th stage of growth of two-dimensional cellular automaton defined by "Rule 149", based on the 5-celled von Neumann neighborhood.at n=40A270319
• a(n) is the smallest nonnegative integer such that the sum of any five ordered terms a(k), k<=n (repetitions allowed), is unique.at n=11A365301