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A373730
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Reduced Collatz function R applied to the numbers 6n+1: a(n) = R(6n+1), where R(k) = (3k+1)/2^r, with r as large as possible.
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1
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1, 11, 5, 29, 19, 47, 7, 65, 37, 83, 23, 101, 55, 119, 1, 137, 73, 155, 41, 173, 91, 191, 25, 209, 109, 227, 59, 245, 127, 263, 17, 281, 145, 299, 77, 317, 163, 335, 43, 353, 181, 371, 95, 389, 199, 407, 13, 425, 217, 443, 113, 461, 235, 479, 61, 497, 253, 515
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OFFSET
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0,2
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LINKS
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FORMULA
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MATHEMATICA
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A373730[n_] := #/2^IntegerExponent[#, 2] & [9*n + 2];
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PROG
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(PARI) a(n) = n=9*n+2; n>>valuation(n, 2);
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CROSSREFS
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KEYWORD
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nonn,easy,changed
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AUTHOR
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STATUS
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approved
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