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A129865
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List of pairs {nth prime == 7 mod 18, n-th pair == -7 mod 18}.
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7, 11, 43, 29, 61, 47, 79, 83, 97, 101, 151, 137, 223, 173, 241, 191, 277, 227, 313, 263, 331, 281, 349, 317, 367, 353, 421, 389, 439, 443, 457, 461, 547, 479, 601, 569, 619, 587, 673, 641, 691, 659, 709, 677, 727, 821, 853, 839, 907, 857, 997, 911, 1033, 929
(list; graph; refs; listen; history; internal format)
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OFFSET
| 1,1
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COMMENTS
| Sum of pairs is multiple of 18k, with k=1,4,6,9,11,16,22,24,28,32,34,37,40,45,49,51,57,65,67,73,75,77,86,94,98,106.
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MATHEMATICA
| pp=Prime[Range[1000]]; se7=Select[pp, Mod[ #, 18]==7&]; se11=Select[pp, Mod[ #, 18]==11&]; nn=Min[Length/@{se7, se11}]; tr=Table[{se7[[i]], se11[[i]]}, {i, nn}]; A1=tr//Flatten; k=(Total/@tr)/18
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CROSSREFS
| Cf. A129807.
Sequence in context: A019416 A138122 A176955 * A153377 A062209 A086828
Adjacent sequences: A129862 A129863 A129864 * A129866 A129867 A129868
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KEYWORD
| nonn
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AUTHOR
| Zak Seidov (zakseidov(AT)yahoo.com), May 24 2007
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