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Search: id:A005570
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| A005570 |
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Number of walks on cubic lattice.
(Formerly M5038)
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+0
1
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| 17, 50, 99, 164, 245, 342, 455, 584, 729, 890, 1067, 1260, 1469, 1694, 1935, 2192, 2465, 2754, 3059, 3380, 3717, 4070, 4439, 4824, 5225, 5642, 6075, 6524, 6989, 7470, 7967, 8480, 9009, 9554, 10115, 10692, 11285
(list; graph; listen)
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OFFSET
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1,1
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REFERENCES
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S. Plouffe, Approximations de S\'{e}ries G\'{e}n\'{e}ratrices et Quelques Conjectures}, Dissertation, Universit\'{e} du Qu\'{e}bec \`{a} Montr\'{e}al, 1992.
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LINKS
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S. Plouffe, Approximations de S\'{e}ries G\'{e}n\'{e}ratrices et Quelques Conjectures}, Dissertation, Universit\'{e} du Qu\'{e}bec \`{a} Montr\'{e}al, 1992.
S. Plouffe, 1031 Generating Functions and Conjectures, Universit\'{e} du Qu\'{e}bec \`{a} Montr\'{e}al, 1992.
R. K. Guy, Catwalks, Sandsteps and Pascal Pyramids, J. Integer Seqs., Vol. 3 (2000), #00.1.6
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FORMULA
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8 n^2 + 9 n.
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MAPLE
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A005570:=(-17+z)/(z-1)**3; [Conjectured by S. Plouffe in his 1992 dissertation.]
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CROSSREFS
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Sequence in context: A120612 A098329 A003124 this_sequence A078757 A041560 A041562
Adjacent sequences: A005567 A005568 A005569 this_sequence A005571 A005572 A005573
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KEYWORD
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nonn,easy
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AUTHOR
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njas
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EXTENSIONS
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Formula and more terms from Jeffrey Shallit 8/95.
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