81480

Appears in sequences

• Places k where the infinitary phi-function A064380(k) divides the infinitary sigma-function A049417(k).at n=24A187033
• Number T(n,k) of equivalence classes of ways of placing k 6 X 6 tiles in an n X n square under all symmetry operations of the square; irregular triangle T(n,k), n>=6, 0<=k<=floor(n/6)^2, read by rows.at n=46A236829