The Sierpinski triangle or gasket is a fractal named after the Polish mathematician Waclaw Sierpinski. Surprisingly the fractal can be generated with just 4 lines of Redcode:
width equ 126 trail equ (sum-CORESIZE%width) start equ (trail-width+1) sum mov #3, @3 ptr mov.b trail, sum add.b {ptr, sum djn sum, #start
The magic incantation for pMARS is
pmars -v 132
. Alternatively set the width to 128 to view using CoreWin :-)