49600

Appears in sequences

• Number of possible queen moves on an n X n chessboard.at n=24A035005
• Expansion of (1-x)/(1+2*x+2*x^2-2*x^3).at n=18A078067
• a(n) = n^2*(n^3-n+2)/2.at n=10A101377
• Experience Points thresholds for levels in the pen and paper role-playing game "Das Schwarze Auge" (DSA, a.k.a. "The Dark Eye").at n=31A124437
• Triangle, read by rows, where T(n,k) = Sum_{i=k..n-1} T(n-1,i)*T(i+1,k+1) for n>k with T(n,n) = n+1 for n>=0.at n=23A152541
• Column 2 of triangle A152541.at n=4A152544
• First differences of harmonic (or Ore) numbers A001599.at n=19A153789
• Expansion of g.f.: x*(1 - x)*(1 + x)/(1 - x - 9*x^2 - x^3 + x^4).at n=10A171066
• a(n) = permanent M_n where M_n is the n X n matrix m(i,j) = (i-j)^2.at n=5A278857
• Number of minimal dominating sets in the 2 X n king graph.at n=16A286850
• Expansion of Product_{k>=1} 1/(1 - x^k - x^(2*k) - x^(3*k)).at n=17A320286
• Larger of amicable pair m < n defined by t(n) = m and t(m) = n where t(n) = psi(n) - n and psi(n) = A001615(n) is the Dedekind psi function.at n=21A323330
• Concatenation of sum n+(n+1) and product n*(n+1) in decimal.at n=24A337148
• Number of ways to partition the set of vertices of a convex {n+8}-gon into 3 non-intersecting polygons.at n=24A350116
• Matrix inverse of triangle A296548, read by rows.at n=18A373396