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Search: id:A154266
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| 12, 39, 66, 93, 120, 147, 174, 201, 228, 255, 282, 309, 336, 363, 390, 417, 444, 471, 498, 525, 552, 579, 606, 633, 660, 687, 714, 741, 768, 795, 822, 849, 876, 903, 930, 957, 984, 1011, 1038, 1065, 1092, 1119, 1146, 1173, 1200, 1227, 1254, 1281, 1308
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OFFSET
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1,1
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COMMENT
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Pell's equation X^2-AY^2=1, with Y=a(n), A=9n^2-10n+3 [A154262]; or A=9n^2-8n+2 [A154254] and X=9A-1.
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FORMULA
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a(n)=27n+12
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EXAMPLE
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For n=0, 27n+12=12, n=1, a(1)=39
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CROSSREFS
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Cf. A154267, A154262, A154254
Sequence in context: A043897 A079539 A167712 this_sequence A119094 A139691 A114815
Adjacent sequences: A154263 A154264 A154265 this_sequence A154267 A154268 A154269
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KEYWORD
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nonn
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AUTHOR
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Vincenzo Librandi (vincenzo.librandi(AT)tin.it), Jan 06 2009
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EXTENSIONS
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119 replaced by 1119 - R. J. Mathar (mathar(AT)strw.leidenuniv.nl), Jan 07 2009
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