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 A293871 Numbers having 11 as substring of their digits. 11
 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 (list; graph; refs; listen; history; text; internal format)
 OFFSET 1,1 LINKS MAPLE select(n->searchtext("11", convert(n, string))>0, [\$1...1131]); # Paolo P. Lava, Sep 05 2018 PROG (PARI) is_A293871 = has(n, p=11, m=10^#Str(p))=until(p>n\=10, n%m==p&&return(1)) CROSSREFS Row 11 of A292690 and A293869. Cf. A292451, A292731 (both partially coincide with this sequence, but no inclusion relation holds). Cf. A011540, A011531, A011532, A011533, A011534, A011535, A011536, A011537, A011538, A011539: analog for substrings '0' through '9'. Cf. A293870, A293872, A293873, A293874, A293875, A293876, A293877, A293878, A293879, A293880: same for substrings '10' - '20'. Cf. A121031: subsequence of terms divisible by 11. Cf. A121022, A121023, A121024, A121025, A121026, A121027, A121028, A121029, A121030, A121032, A121033, A121034, A121035, A121036, A121037, A121038, A121039, A121040: analog of the above A121031, for substrings 2 .. 20. Cf. A121041. Sequence in context: A169631 A280855 A103542 * A211968 A284040 A288293 Adjacent sequences:  A293868 A293869 A293870 * A293872 A293873 A293874 KEYWORD nonn,base,easy AUTHOR M. F. Hasler, Oct 18 2017 STATUS approved

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Last modified April 26 04:37 EDT 2019. Contains 322469 sequences. (Running on oeis4.)