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A039800
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Column 1 of Inverse partition triangle A038498.
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6
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1, -1, 0, 1, 0, 0, -1, -1, 0, 0, 1, 1, 2, 2, 1, 0, -1, -2, -3, -4, -5, -5, -5, -4, -3, -1, 2, 5, 8, 11, 14, 17, 18, 20, 20, 20, 18, 16, 11, 8, 0, -6, -15, -23, -34, -43, -54, -63, -73, -81, -88, -95, -98, -101, -99, -99, -89, -86, -70, -60, -38, -24, 8, 25, 62
(list;
graph;
refs;
listen;
history;
text;
internal format)
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OFFSET
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1,13
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LINKS
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PROG
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(PARI) tp(n, k) = if (n<1, 0, if (k<1, 0, if (k == n, 1, if (k > n, 0, tp(n-1, k-1) + tp(n-k, k)))));
lista(nn) = {my(mtp = matrix(nn, nn, n, k, tp(n, k)), mtpi = mtp^(-1)); vector(nn, k, mtpi[k, 1]); } \\ Michel Marcus, Feb 27 2021
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CROSSREFS
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KEYWORD
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sign
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AUTHOR
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EXTENSIONS
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STATUS
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approved
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