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Template:Seal pyramid/Wisteria/depth/2

From Wikiversity
c
a
0 1 2 3 4 5 6 7 Σ
0
1
2 1 1
3 1 3 3 7
4 13 16 6 35
5 90 55 10 155
6 480 156 15 651
7 2247 399 21 2667