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A086647
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Number of monomials in expansion of permanent of an n X n Toeplitz matrix [t(|i-j|) ] in terms of its entries.
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0
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1, 2, 4, 12, 36, 128, 460, 1750, 6551, 25108, 94977
(list; graph; refs; listen; history; internal format)
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OFFSET
| 1,2
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MATHEMATICA
| Permanent[m_List] := With[{v = Array[x, Length@m]}, Coefficient[Times @@ (m . v), Times @@ v]]; ; f[n_] := Length@Expand@Permanent@Table[t[Abs[i - j]], {i, n}, {j, n}]; Array[f, 11] (* Robert G. Wilson v *)
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CROSSREFS
| Cf. A019447.
Sequence in context: A148211 A009152 A081443 * A187119 A062161 A195733
Adjacent sequences: A086644 A086645 A086646 * A086648 A086649 A086650
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KEYWORD
| nonn
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AUTHOR
| Yuval Dekel (dekelyuval(AT)hotmail.com), Jul 26 2003
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EXTENSIONS
| More terms from Robert G. Wilson v Sep 22 2006
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