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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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11
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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; refs; listen; history; internal format)
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OFFSET
| 1,2
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REFERENCES
| Stan Wagon, The Power of Visualization, Front Range Press, 1994, p. 2-3.
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LINKS
| T. D. Noe, Table of n, a(n) for n=1..1000
Eric Weisstein's World of Mathematics, Chebyshev Bias
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FORMULA
| Flatten[ Position[ FoldList[ Plus, 0, Mod[ Prime[ Range[ 2, 50900 ] ], 4 ]-2 ], 0 ] ]
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CROSSREFS
| Cf. A002145, A002313, A007350, A007351, A038698.
Cf. A156749 Sequence showing Chebyshev bias in prime races (mod 4). [From Daniel Forgues (squid(AT)zensearch.com), Mar 26 2009]
Sequence in context: A028491 A137474 A071087 * A082718 A154821 A084741
Adjacent sequences: A038688 A038689 A038690 * A038692 A038693 A038694
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KEYWORD
| nonn
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AUTHOR
| Hans Havermann (gladhobo(AT)teksavvy.com)
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