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Search: id:A028834
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| A028834 |
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Numbers n such that sum of digits of n is a prime. |
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+0
13
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| 2, 3, 5, 7, 11, 12, 14, 16, 20, 21, 23, 25, 29, 30, 32, 34, 38, 41, 43, 47, 49, 50, 52, 56, 58, 61, 65, 67, 70, 74, 76, 83, 85, 89, 92, 94, 98, 101, 102, 104, 106, 110, 111, 113, 115, 119, 120, 122, 124, 128, 131, 133, 137, 139, 140, 142, 146, 148, 151, 155, 157, 160, 164, 166, 173, 175, 179, 182
(list; graph; listen)
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OFFSET
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1,1
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LINKS
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T. D. Noe, Table of n, a(n) for n=1..1000
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MAPLE
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a:=proc(n) local nn: nn:=convert(n, base, 10): if isprime(sum(nn[j], j=1..nops(nn)))=true then n else fi end: seq(a(n), n=1..200); - Emeric Deutsch (deutsch(AT)duke.poly.edu), Mar 17 2007
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CROSSREFS
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Cf. A007953, A028835, A028842, A052018, A052019, A052020, A052021, A052022.
Adjacent sequences: A028831 A028832 A028833 this_sequence A028835 A028836 A028837
Sequence in context: A073085 A119251 A028835 this_sequence A139750 A139749 A165132
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KEYWORD
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nonn,base,easy,nice
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AUTHOR
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Armand Turpel (armand(AT)vo.lu, armand_t(AT)geocities.com)
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EXTENSIONS
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More terms from Scott Lindhurst (ScottL(AT)alumni.princeton.edu)
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