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A007928
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Numbers that contain an even digit.
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4
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0, 2, 4, 6, 8, 10, 12, 14, 16, 18, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30, 32, 34, 36, 38, 40, 41, 42, 43, 44, 45, 46, 47, 48, 49, 50, 52, 54, 56, 58, 60, 61, 62, 63, 64, 65, 66, 67, 68, 69, 70, 72, 74, 76, 78, 80, 81, 82, 83, 84, 85, 86, 87, 88, 89, 90, 92, 94, 96, 98, 100
(list; graph; refs; listen; history; internal format)
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OFFSET
| 1,2
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COMMENTS
| Or, numbers whose product of digits is even.
Complement of A014261; A196563(a(n)) > 0. [Reinhard Zumkeller, Oct 04 2011]
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REFERENCES
| F. Smarandache, "Only Problems, not Solutions!", Xiquan Publ., Phoenix-Chicago, 1993
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LINKS
| Reinhard Zumkeller, Table of n, a(n) for n = 1..10000
M. L. Perez et al., eds., Smarandache Notions Journal
F. Smarandache, Only Problems, Not Solutions!.
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PROG
| (MAGMA) [ n : n in [0..129] | IsEven(&*Intseq(n, 10)) ];
(Haskell)
import Data.List (findIndices)
a007928 n = a007928_list !! (n-1)
a007928_list = findIndices (> 0) a196563_list
-- Reinhard Zumkeller, Oct 04 2011
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CROSSREFS
| Sequence in context: A117463 A095371 A055960 * A092451 A055962 A195169
Adjacent sequences: A007925 A007926 A007927 * A007929 A007930 A007931
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KEYWORD
| nonn,base
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AUTHOR
| R. Muller
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