A247033 revision #8
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A247033
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Numbers of the form (3^k - 3)/k.
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1
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0, 3, 8, 48, 121, 312, 16104, 122640, 7596480, 61171656, 4093181688, 2366564736720, 19924948267224, 12169835294351280, 889585277491970400, 7633882962663652968, 565719454445904325272, 365721616371321130128240, 239498069351503974657030696, 2084811062715550992506283600
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OFFSET
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1,2
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COMMENTS
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Generated by k: 1, 2, 3, 5, 6, 7, 11, 13, 17, 19, 23, 29, 31, 37, 41, 43, 47, 53, 59, 61, 66, 67, ...
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LINKS
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EXAMPLE
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121 is in this sequence because (3^k - 3)/k = (3^6 - 3)/6 = 121.
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CROSSREFS
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KEYWORD
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nonn
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AUTHOR
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STATUS
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editing
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