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Search: id:A127601
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| A127601 |
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Integer part of 4-th root of product of first n primes. |
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+0
5
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| 1, 1, 2, 3, 6, 13, 26, 55, 122, 283, 669, 1650, 4176, 10694, 28002, 75555, 209402, 585212, 1674296, 4860120, 14206194, 42353033, 127836257, 392646335, 1232237672, 3906383039, 12444691408, 40024883480, 129326254765
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OFFSET
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1,3
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COMMENT
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For n>=6 A127601(n)>=p(n+1) (n+1 prime )
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MATHEMATICA
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a = {}; Do[b = 1; Do[b = b Prime[x], {x, 1, n}]; AppendTo[a, Floor[b^(1/4)]], {n, 1, 50}]; a (*Artur Jasinski*)
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CROSSREFS
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Cf. A002110, A060797, A127600, A127601, A127602, A127603, A127604, A127605.
Sequence in context: A007910 A052702 A058766 this_sequence A030038 A030040 A075853
Adjacent sequences: A127598 A127599 A127600 this_sequence A127602 A127603 A127604
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KEYWORD
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nonn
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AUTHOR
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Artur Jasinski (grafix(AT)csl.pl), Jan 19 2007
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