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A293871
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Numbers having 11 as substring of their digits.
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13
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11, 110, 111, 112, 113, 114, 115, 116, 117, 118, 119, 211, 311, 411, 511, 611, 711, 811, 911, 1011, 1100, 1101, 1102, 1103, 1104, 1105, 1106, 1107, 1108, 1109, 1110, 1111, 1112, 1113, 1114, 1115, 1116, 1117, 1118, 1119, 1120, 1121, 1122, 1123, 1124, 1125, 1126, 1127, 1128, 1129, 1130, 1131
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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[Range[2000], StringContainsQ[IntegerString[#], "11"] &] (* Paolo Xausa, Feb 25 2024 *)
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PROG
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(PARI) is_A293871 = has(n, p=11, m=10^#Str(p))=until(p>n\=10, n%m==p&&return(1))
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CROSSREFS
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Cf. A292451, A292731 (both partially coincide with this sequence, but no inclusion relation holds).
Cf. A121031: subsequence of terms divisible by 11.
Numbers divisible by k and having k as a substring: A121022 (2), A121023 (3), A121024 (4), A121025 (5), A121026 (6), A121027 (7), A121028 (8), A121029 (9), A121030 (10), A121031 (11), A121032 (12), A121033 (13), A121034 (14), A121035 (15), A121036 (16), A121037 (17), A121038 (18), A121039 (19), A121040 (20).
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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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