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Search: id:A069326
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| A069326 |
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Number of 4 X n binary arrays with path of adjacent 1's from upper right corner to lower left corner. |
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+0
18
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| 1, 20, 295, 3828, 46557, 546286, 6279393, 71316632, 804230945, 9031118936, 101161197895, 1131456031256, 12643706576681, 141214773950750, 1576695869980497, 17600838146781308, 196457931325141165
(list; graph; listen)
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OFFSET
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1,2
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CROSSREFS
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Cf. 2 X n A048739, 3 X n A069325, 5 X n A069327, 6 X n A069328, 7 X n A069329, 8 X n A069330, 9 X n A069331, 10 X n A069332, 11 X n A069333, 12 X n A069334, 13 X n A069335, 14 X n A069336, 15 X n A069337, 16 X n A069338, 17 X n A069339, 18 X n A069340, 19 X n A069341, 20 X n A069342, n X n A069343, n X n symmetric A069344.
Adjacent sequences: A069323 A069324 A069325 this_sequence A069327 A069328 A069329
Sequence in context: A016259 A047795 A132168 this_sequence A001708 A016255 A138794
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KEYWORD
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nonn
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AUTHOR
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Ron Hardin (rhh(AT)cadence.com), Mar 16 2002.
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