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A343171
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Irregular triangle read by rows: coefficients of polynomials xi_n.
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1
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1, 1, 3, 1, 11, 5, 57, 38, 5, 361, 302, 61, 2763, 2827, 845, 61, 24611, 29607, 11421, 1385, 250737, 347372, 165678, 30108, 1385, 2873041, 4501564, 2551326, 610444, 50521, 36581523, 63967093, 42044902, 12558738, 1578727, 50521
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listen;
history;
text;
internal format)
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OFFSET
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0,3
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LINKS
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EXAMPLE
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Triangle begins:
1;
1;
3, 1;
11, 5;
57, 38, 5;
361, 302, 61;
...
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MATHEMATICA
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xi[0][_] = 1;
xi[n_][x_] := xi[n, x] = (2n - 1 + (n-1) x) xi[n-1][x] - (1 + x)(4 + 2x)* xi[n-1]'[x];
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CROSSREFS
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KEYWORD
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nonn,tabf
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AUTHOR
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EXTENSIONS
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STATUS
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approved
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