1+2+3+4+5+6 = 21
1+2+3+4+5+6+7 = 28
1+2+3+4+5+6+7+8 = 36
1+2+3+4+5+6+7+8+9 = 45
Is there a tool, that can do me that job?
How do I get this List {1,3,6,10,15,21,28,36,45}?…
Added by Ahmed Hossam at 2:19pm on September 22, 2013
wunderbar ^^* !
maybe you would be interested in Jun Mitani's work ?
www.flickr.com/photos/jun_mitani/mitani.cs.tsukuba.ac.jhe published two books (keyword : 三谷 純)立体ふしぎ折り紙
ふしぎな 球体・立体折り紙