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Search: id:A038691
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| A038691 |
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Prime race 4k-1 vs 4k+1 is tied at n-th prime. |
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+0
10
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| 1, 3, 7, 13, 89, 2943, 2945, 2947, 2949, 2951, 2953, 50371, 50375, 50377, 50379, 50381, 50393, 50413, 50423, 50425, 50427, 50429, 50431, 50433, 50435, 50437, 50439, 50445, 50449, 50451, 50503, 50507, 50515, 50517, 50821, 50843, 50853
(list; graph; listen)
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OFFSET
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1,2
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REFERENCES
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Stan Wagon, The Power of Visualization, Front Range Press, 1994, p. 2-3.
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LINKS
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Eric Weisstein's World of Mathematics, Chebyshev Bias
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FORMULA
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Flatten[ Position[ FoldList[ Plus, 0, Mod[ Prime[ Range[ 2, 50900 ] ], 4 ]-2 ], 0 ] ]
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CROSSREFS
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Cf. A002145, A002313, A007350, A007351, A038698.
Adjacent sequences: A038688 A038689 A038690 this_sequence A038692 A038693 A038694
Sequence in context: A028491 A137474 A071087 this_sequence A082718 A084741 A135623
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KEYWORD
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nonn
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AUTHOR
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Hans Havermann (pxp(AT)rogers.com)
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