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A121031
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Multiples of 11 containing an 11 in their decimal representation.
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34
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11, 110, 1100, 1111, 1122, 1133, 1144, 1155, 1166, 1177, 1188, 1199, 2112, 2211, 3113, 3311, 4114, 4411, 5115, 5511, 6116, 6611, 7117, 7711, 8118, 8811, 9119, 9911, 11000, 11011, 11022, 11033, 11044, 11055, 11066, 11077, 11088, 11099, 11110
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OFFSET
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1,1
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LINKS
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FORMULA
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MATHEMATICA
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Select[11*Range[1100], MemberQ[Partition[IntegerDigits[#], 2, 1], {1, 1}]&] (* Harvey P. Dale, Feb 16 2014 *)
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PROG
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(PARI) is(n)=if(n%11, return(0)); while(n>10, if(n%100==11, return(1)); n\=10); 0 \\ Charles R Greathouse IV, Feb 12 2017
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CROSSREFS
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Cf. A121041, A008593, A011531, A121022, A121023, A121024, A121025, A121026, A121027, A121028, A121029, A121030, A121032, A121033, A121034, A121035, A121036, A121037, A121038, A121039, A121040.
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KEYWORD
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nonn,base,easy
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AUTHOR
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STATUS
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approved
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