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A186892
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Nonprime numbers n such that the Stern polynomial B(n,x) is irreducible.
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3
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1, 25, 55, 65, 77, 91, 95, 115, 121, 125, 133, 143, 145, 161, 169, 175, 185, 203, 205, 209, 215, 235, 245, 247, 253, 265, 289, 295, 299, 301, 305, 319, 323, 329, 335, 343, 361, 377, 391, 395, 407, 415, 425, 427, 445, 451, 469, 473, 475, 485, 493, 505, 515, 517, 529, 533, 539, 545, 551, 559, 575, 581, 583, 623, 625
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OFFSET
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1,2
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COMMENTS
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See A186891 for all numbers n such that the Stern polynomial B(n,x) is irreducible.
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LINKS
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PROG
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(PARI) ps(n)=if(n<2, n, if(n%2, ps(n\2)+ps(n\2+1), 'x*ps(n\2)))
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CROSSREFS
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KEYWORD
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nonn
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AUTHOR
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STATUS
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approved
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