# Euler problems/161 to 170

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< Euler problems(Difference between revisions)

(Placeholder for problem 161) |
(Added problems 162 and 163) |

## Revision as of 21:20, 14 October 2007

## 1 Problem 161

Triominoes

Solution:

problem_161 = undefined

## 2 Problem 162

Hexadecimal numbers

Solution:

problem_162 = undefined

## 3 Problem 163

Cross-hatched triangles

Solution:

problem_163 = undefined