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A113763
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Non-multiples of 13, or numbers not divisible by 13.
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2
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1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 27, 28, 29, 30, 31, 32, 33, 34, 35, 36, 37, 38, 40, 41, 42, 43, 44, 45, 46, 47, 48, 49, 50, 51, 53, 54, 55, 56, 57, 58, 59, 60, 61, 62, 63, 64, 66, 67, 68, 69, 70, 71, 72, 73, 74, 75, 76, 77
(list; graph; refs; listen; history; internal format)
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OFFSET
| 1,2
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COMMENTS
| Cf. A011760 (Elevator buttons in U.S.A).
Cf. A023806 (all digits in base 12 are different).
Complement of A008595. [Reinhard Zumkeller, Apr 26 2011]
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LINKS
| Eric Weisstein's World of Mathematics, Triskaidekaphobia
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FORMULA
| a(n) = n+floor((2n-1)/24) = n+quotient(2n-1, 24)
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MATHEMATICA
| Table[n+Quotient[2n-1, 24], {n, 1, 85}]; (* or *)Table[n+Floor[(2n-1)/24], {n, 1, 85}]
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PROG
| (Sage) [i for i in range(80) if gcd(13, i) == 1] [From Zerinvary Lajos (zerinvarylajos(AT)yahoo.com), Apr 21 2009]
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CROSSREFS
| Cf. A011760, A023806.
Sequence in context: A180004 A172270 A023806 * A023754 A085824 A014157
Adjacent sequences: A113760 A113761 A113762 * A113764 A113765 A113766
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KEYWORD
| nonn
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AUTHOR
| Zak Seidov (zakseidov(AT)yahoo.com), Jan 18 2006
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