Transport lines in terms of the number of neighbourhoods
| Number of neighbourhoods | Variations | Number of public transport lines needed |
|---|---|---|
| 1 | No need for public transport | 0 |
| 2 | P(2, 2)=2 | L(2)=1 |
| 3 | P(3, 2)=6 | L(3)=3 |
| 4 | P(4, 2)=12 | L(4)=6 |
| 5 | P(5, 2)=20 | L(5)=10 |
| 6 | P(6, 2)=30 | L(6)=15 |
| 7 | P(7, 2)=42 | L(7)=21 |
| 8 | … | … |
| Number of neighbourhoods | Variations | Number of public transport lines needed |
|---|---|---|
| 1 | No need for public transport | 0 |
| 2 | ||
| 3 | ||
| 4 | ||
| 5 | ||
| 6 | ||
| 7 | ||
| 8 | … | … |
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