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Search: id:A071923
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| A071923 |
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Prime such that pi{x^2,(x+1)^2+1}=pi{(x+1)^2,p}. |
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+0
1
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| 7, 13, 19, 37, 41, 67, 73, 101, 107, 149, 163, 193, 227, 239, 281, 337, 353, 397, 433, 479, 523, 577, 607, 677, 733, 769, 829, 907, 953, 1013, 1091, 1151, 1229, 1289, 1373, 1439, 1489, 1601, 1667, 1777, 1867, 1907, 2027, 2099, 2237, 2281, 2389, 2543, 2591
(list; graph; listen)
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OFFSET
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0,1
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EXAMPLE
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a(1)=7 because pi(1,4)=2 and pi(4,7)=2
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PROGRAM
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(PARI) pi(m, n)=local(i, pic); pic=0; forprime (i=m, n, pic++); pic; for (x=1, 500, xc=0; px=pi(x^2, (x+1)^2); forprime (y=(x+1)^2, 100000, xc++; if (xc==px, write1("primeSquared.txt", y, ", "); break)))
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CROSSREFS
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Sequence in context: A122482 A048375 A108295 this_sequence A048646 A152087 A098059
Adjacent sequences: A071920 A071921 A071922 this_sequence A071924 A071925 A071926
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KEYWORD
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nonn
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AUTHOR
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Jon Perry (perry(AT)globalnet.co.uk), Jun 14 2002
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