Numbers are written in text, spelling out Pascal’s Triangle:

1
1-1
1-2-1
1-3-3-1
1-4-6-4--1
1-5-10- 10-5-1
1-6-15-20-15-6-1
1-7-21-35-35-21-7-1
1-8-28-56-70-56-28-8-1
1-9-36-84-16-126-84-36-9-1
1-10-45-120-210-252-210-120-45-10-1
1-11-55-165-330-462-462-330-165-55-11-1
1-12-66-220-495-792-924-792-495-220-66-12-1
1-13-78-286-715-1287-1716-1716-1287-715-286-78-13-1
1-14-91-364-1001-2002-3003-3422-3003-2002-1001-364-91-14-1
1-15-105-455-1365-3003-5005-6435-6435-5005-3003-136- 455-105-15-1
1-16-120-560-1820-4368-8008-11,440-12,870-11,440-8008-4368-1820-560-120-16-1

Figure: Serpinski's triangle - exemplies fractal removal of space from a solid figure.