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Template:Seal pyramid/Liana/depth/1

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v
a
0 1 2 3 4 5 6 7 Σ
0
1 1 1
2 2 1 3
3 3 3 1 7
4 4 6 4 1 15
5 5 10 10 5 1 31
6 6 15 20 15 6 1 63
7 7 21 35 35 21 7 1 127