A293879 Numbers having '19' as substring of their digits.

19, 119, 190, 191, 192, 193, 194, 195, 196, 197, 198, 199, 219, 319, 419, 519, 619, 719, 819, 919, 1019, 1119, 1190, 1191, 1192, 1193, 1194, 1195, 1196, 1197, 1198, 1199, 1219, 1319, 1419, 1519, 1619, 1719, 1819, 1900, 1901, 1902, 1903, 1904, 1905, 1906, 1907, 1908, 1909, 1910, 1911

Offset

1,1

Comments

Row 19 of A292690 and A293869. A121039 lists the terms which are divisible by 19.

Links

Table of n, a(n) for n=1..51.

Index entries for 10-automatic sequences

Formula

a(n) ~ n. - Charles R Greathouse IV, Nov 02 2022

Mathematica

Select[Range[2000], SequenceCount[IntegerDigits[#], {1, 9}]>0&] (* Requires Mathematica version 10 or later *) (* Harvey P. Dale, Sep 11 2019 *)

Prog

(PARI) is_A293879 = has(n, p=19, m=10^#Str(p))=until(p>n\=10, n%m==p&&return(1))

Crossrefs

Cf. A292690, A293869.

Cf. A011540, A011531, A011532, A011533, A011534, A011535, A011536, A011537, A011538, A011539: analog for '0' - '9'.

Cf. A293870, A293871, A293872, A293873, A293874, A293875, A293876, A293877, A293878, A293880: same for '10' - '20'.

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.

Sequence in context: A220228 A027460 A213556 * A044351 A044732 A159851

Adjacent sequences: A293876 A293877 A293878 * A293880 A293881 A293882

Keyword

nonn,base,easy

Author

M. F. Hasler, Oct 18 2017

Status

approved