User:Donghwi Park

South Korean computational science researcher.

future contributions

a(n) is the number of n-th order n X n magic array composed of the numbers from 1 to n^2 in which the sum of the each 2 X 2 subsquares is same for all subsquares, counted up to rotations and reflections

1, 3, 47, 2544, 6480

a(n) is the number of n-th order magic triangles composed of the numbers from 1 to n^2 in which the sum of the each 2 X 2 subtriangles is same for all subtriangles, counted up to rotations and reflections

1,4,18,4792,67488,10906128