26700

Appears in sequences

• Magnetic susceptibility coefficients for square lattice spin 2 Ising model.at n=30A010116
• Magnetic susceptibility coefficients for square lattice spin 3 Ising model.at n=46A010117
• Magnetic susceptibility coefficients for square lattice spin 5/2 Ising model.at n=38A010119
• a(n) = dot_product(n,n-1,...2,1)*(5,6,...,n,1,2,3,4).at n=45A026060
• Values of m such that N=(am+1)(bm+1)(cm+1) is a 3-Carmichael number (A087788), where a,b,c = 1,2,21.at n=35A064247
• 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, 0), (-1, 0, 1), (-1, 1, -1), (1, 0, -1), (1, 0, 0)}.at n=11A148178
• Number of ways to arrange 7 indistinguishable points on an n X n square grid so that no three points are collinear at any angle.at n=4A194192
• Square array read by antidiagonals downwards: T(n,k) = number of ways to arrange k indistinguishable points on an n X n square grid so that no three points are collinear at any angle.at n=59A194193
• a(n) = prime(n)*T(n), where T = A000217.at n=23A196421
• Number of -3..3 arrays x(i) of n+1 elements i=1..n+1 with set{t,u,v in 0,1}((x[i+t]+x[j+u]+x[k+v])*(-1)^(t+u+v)) having three, four, five, six or seven distinct values for every i,j,k<=n.at n=5A211744
• Exponential (2,3)-perfect numbers: numbers m such that esigma(esigma(m)) = 3m, where esigma(m) is the sum of exponential divisors of m (A051377).at n=24A328132
• Irregular table read by rows: T(n,k) is the number of k-sided polygons, for n>=1 and k>=3, in a hexagon when straight line segments connect the n-1 points between each corner that divide each edge into n equal parts to the n-1 points on the edge on the opposite side of the hexagon.at n=58A367665