login
This site is supported by donations to The OEIS Foundation.

 

Logo


Hints
(Greetings from The On-Line Encyclopedia of Integer Sequences!)
A293878 Numbers having '18' as substring of their digits / decimal expansion. 11
18, 118, 180, 181, 182, 183, 184, 185, 186, 187, 188, 189, 218, 318, 418, 518, 618, 718, 818, 918, 1018, 1118, 1180, 1181, 1182, 1183, 1184, 1185, 1186, 1187, 1188, 1189, 1218, 1318, 1418, 1518, 1618, 1718, 1800, 1801, 1802, 1803, 1804, 1805, 1806, 1807, 1808, 1809, 1810, 1811, 1812 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,1

COMMENTS

Row 16 of A292690 and A293869. A121038 lists the terms which are divisible by 18.

LINKS

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

MAPLE

select(n->searchtext("18", convert(n, string))>0, [$1...1812]); # Paolo P. Lava, Sep 05 2018

PROG

(PARI) is_A293878 = has(n, p=18, 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, A293879, 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: A207103 A101089 A022678 * A044350 A044731 A190705

Adjacent sequences:  A293875 A293876 A293877 * A293879 A293880 A293881

KEYWORD

nonn,base,easy

AUTHOR

M. F. Hasler, Oct 18 2017

STATUS

approved

Lookup | Welcome | Wiki | Register | Music | Plot 2 | Demos | Index | Browse | More | WebCam
Contribute new seq. or comment | Format | Style Sheet | Transforms | Superseeker | Recent
The OEIS Community | Maintained by The OEIS Foundation Inc.

License Agreements, Terms of Use, Privacy Policy. .

Last modified April 19 04:19 EDT 2019. Contains 322237 sequences. (Running on oeis4.)