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A013750
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a(n) = 12^(3*n + 1).
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2
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12, 20736, 35831808, 61917364224, 106993205379072, 184884258895036416, 319479999370622926848, 552061438912436417593344, 953962166440690129601298432, 1648446623609512543951043690496
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OFFSET
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0,1
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LINKS
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FORMULA
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a(n) = 1728*a(n-1); a(0)=12.
G.f.: 12/(1-1728*x).
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PROG
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CROSSREFS
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KEYWORD
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nonn,easy
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AUTHOR
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STATUS
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approved
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