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Template:Seal pyramid/Ivy/depth/1

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v
a
0 1 2 3 4 5 6 7 Σ
0
1 1 1
2 1 1 2
3 1 2 1 4
4 1 3 3 1 8
5 1 4 6 4 1 16
6 1 5 10 10 5 1 32
7 1 6 15 20 15 6 1 64