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A277938
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Square array A(n,k), n>=0, k>=0, read by antidiagonals, where column k is the expansion of Product_{j>=1} (1+x^j)^(j*k) in powers of x.
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6
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1, 1, 0, 1, 1, 0, 1, 2, 2, 0, 1, 3, 5, 5, 0, 1, 4, 9, 14, 8, 0, 1, 5, 14, 28, 30, 16, 0, 1, 6, 20, 48, 72, 68, 28, 0, 1, 7, 27, 75, 141, 183, 145, 49, 0, 1, 8, 35, 110, 245, 396, 443, 298, 83, 0, 1, 9, 44, 154, 393, 751, 1058, 1026, 600, 142, 0, 1, 10, 54, 208
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OFFSET
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0,8
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LINKS
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FORMULA
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G.f. of column k: Product_{j>=1} (1+x^j)^(j*k).
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EXAMPLE
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Square array begins:
1, 1, 1, 1, 1, ...
0, 1, 2, 3, 4, ...
0, 2, 5, 9, 14, ...
0, 5, 14, 28, 48, ...
0, 8, 30, 72, 141, ...
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CROSSREFS
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KEYWORD
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AUTHOR
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STATUS
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approved
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