38336

Appears in sequences

• a(n) = (7*n^4 + 5*n^2)/12.at n=15A185505
• T(j,k) are the numerators s in the representation R = s/t + (2*sqrt(3)/Pi)*u/v of the resistance between two nodes separated by the distance (j,k) in an infinite triangular lattice of one-ohm resistors, where T(j,k), j >= 0, 0 <= k <= floor(j/2) is an irregular triangle read by rows.at n=24A355585
• Expansion of e.g.f. exp(sinh(x)) - exp(cosh(x) - 1).at n=12A372508
• Number of order n magic triangles composed of the numbers from 1 to n^2 in which the sum of each 2 X 2 subtriangle is the same, counted up to rotations and reflections.at n=3A375416