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A064319
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Triangle with a(n,1) = n and a(n,k) = a(n,k-1) * a(n-1,k-1).
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3
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1, 2, 2, 3, 6, 12, 4, 12, 72, 864, 5, 20, 240, 17280, 14929920, 6, 30, 600, 144000, 2488320000, 37150418534400000, 7, 42, 1260, 756000, 108864000000, 270888468480000000000, 10063619980174622195712000000000000000, 8, 56
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OFFSET
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1,2
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LINKS
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EXAMPLE
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Rows start
1;
2, 2;
3, 6, 12;
4, 12, 72, 864;
...
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CROSSREFS
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KEYWORD
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AUTHOR
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EXTENSIONS
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STATUS
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approved
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