mal in english

How can seven trees be planted so that there are 6 rows of trees
in a straight line with each row having 3 trees? For example, if
you plant them the following way you get only 4 rows of 3 (two
horizontal, one vertical, one diagonal).

* * *
* * *
*


hatte kein bock zu übersetzten

Mal versuchen, ob das zeichnerisch so rüberkommt:


1_____2_____3
______4______
__5_______6__
_____________
______7______


In einer Geraden stehen jeweils:

123
157
146
247
345
367