%I #15 Feb 21 2024 01:50:05
%S 19,119,190,191,192,193,194,195,196,197,198,199,219,319,419,519,619,
%T 719,819,919,1019,1119,1190,1191,1192,1193,1194,1195,1196,1197,1198,
%U 1199,1219,1319,1419,1519,1619,1719,1819,1900,1901,1902,1903,1904,1905,1906,1907,1908,1909,1910,1911
%N Numbers having '19' as substring of their digits.
%C Row 19 of A292690 and A293869. A121039 lists the terms which are divisible by 19.
%H <a href="/index/Ar#10-automatic">Index entries for 10-automatic sequences</a>
%F a(n) ~ n. - _Charles R Greathouse IV_, Nov 02 2022
%t Select[Range[2000],SequenceCount[IntegerDigits[#],{1,9}]>0&] (* Requires Mathematica version 10 or later *) (* _Harvey P. Dale_, Sep 11 2019 *)
%o (PARI) is_A293879 = has(n, p=19, m=10^#Str(p))=until(p>n\=10, n%m==p&&return(1))
%Y Cf. A292690, A293869.
%Y Cf. A011540, A011531, A011532, A011533, A011534, A011535, A011536, A011537, A011538, A011539: analog for '0' - '9'.
%Y Cf. A293870, A293871, A293872, A293873, A293874, A293875, A293876, A293877, A293878, A293880: same for '10' - '20'.
%Y Cf. A121041, A121022, A121023, A121024, A121025, A121026, A121027, A121028, A121029, A121030, A121031, A121032, A121033, A121034, A121035, A121036, A121037, A121038, A121039, A121040: subsequences of the above, containing only multiples of the pattern p.
%K nonn,base,easy
%O 1,1
%A _M. F. Hasler_, Oct 18 2017
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