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Search: id:A165424
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| A165424 |
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a(1) = 1, a(2) = 6, a(n) = product of the previous terms for n >= 3. |
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+0
1
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| 1, 6, 6, 36, 1296, 1679616, 2821109907456, 7958661109946400884391936, 63340286662973277706162286946811886609896461828096
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OFFSET
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1,2
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FORMULA
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a(1) = 1, a(2) = 6, a(n) = product_{i=1..n-1} a(i), n >= 3. a(1) = 1, a(2) = 6, a(n) = A000400(2^(n-3)) = 6^(2^(n-3)), n >= 3. a(1) = 1, a(2) = 6, a(3) = 6, a(n) = (a(n-1))^2, n >= 4.
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CROSSREFS
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Sequence in context: A056454 A056452 A038260 this_sequence A156099 A125510 A117859
Adjacent sequences: A165421 A165422 A165423 this_sequence A165425 A165426 A165427
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KEYWORD
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nonn
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AUTHOR
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Jaroslav Krizek (jaroslav.krizek(AT)atlas.cz), Sep 17 2009
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