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Template:Seal pyramid/Liana/depth/2

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v
a
0 1 2 3 4 5 6 7 Σ
0
1
2 1 1
3 3 4 7
4 6 16 13 35
5 10 40 65 40 155
6 15 80 195 240 121 651
7 21 140 455 840 847 364 2667