| 2, 3, 4, 5, 6, 7, 9, 10, 11, 13, 14, 16, 17, 18, 19, 20, 21, 22, 23, 26, 27, 28, 29, 31, 34, 37, 38, 41, 43, 45, 46, 47, 49, 52, 53, 55, 57, 58, 59, 61, 62, 64, 67, 70, 71, 73, 74, 75, 76, 77, 79, 82, 83, 86, 88, 89, 91, 93, 94, 95, 97, 99, 101, 103, 104, 106, 107, 109, 110, 111
(list; graph; listen)
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OFFSET
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1,1
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LINKS
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B. D. Swan, Table of n, a(n) for n=1,...,50000
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MAPLE
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with(numtheory): a := proc (n) if isprime(2*n-sigma(n)+tau(n)-1) = true then n else end if end proc: seq(a(n), n = 1 .. 120); [From Emeric Deutsch (deutsch(AT)duke.poly.edu), Jan 08 2009]
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CROSSREFS
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Cf. A000005, A000203, A033879, A032741, A152770, A152864.
Sequence in context: A167207 A037143 A048627 this_sequence A062462 A033948 A117730
Adjacent sequences: A152754 A152755 A152756 this_sequence A152758 A152759 A152760
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KEYWORD
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nonn
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AUTHOR
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Omar E. Pol (info(AT)polprimos.com), Dec 14 2008
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EXTENSIONS
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Extended by Emeric Deutsch (deutsch(AT)duke.poly.edu), Jan 08 2009
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