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Search: id:A019447
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| A019447 |
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Number of monomials in expansion of determinant of an n X n Toeplitz matrix [ t(|i-j|) ] in terms of its entries. |
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+0
2
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| 1, 2, 4, 12, 35, 120, 427, 1628, 6090, 23797, 90296
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OFFSET
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1,2
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MATHEMATICA
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f[n_] := Length[ Expand[ Det[ Table[ t[ Abs[ i - j]], {i, 1, n}, {j, 1, n}]]]]; Table[ f[n], {n, 1, 11}]
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CROSSREFS
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Sequence in context: A108530 A001895 A069727 this_sequence A112083 A089965 A084716
Adjacent sequences: A019444 A019445 A019446 this_sequence A019448 A019449 A019450
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KEYWORD
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nonn
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AUTHOR
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Herbert Wilf (wilf(AT)central.cis.upenn.edu)
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