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A293875
Numbers having '15' as substring of their digits.
12
15, 115, 150, 151, 152, 153, 154, 155, 156, 157, 158, 159, 215, 315, 415, 515, 615, 715, 815, 915, 1015, 1115, 1150, 1151, 1152, 1153, 1154, 1155, 1156, 1157, 1158, 1159, 1215, 1315, 1415, 1500, 1501, 1502, 1503, 1504, 1505, 1506, 1507, 1508, 1509, 1510, 1511, 1512, 1513, 1514, 1515
OFFSET
1,1
COMMENTS
Row 15 of A292690 and A293869. A121035 lists the terms which are divisible by 15.
FORMULA
a(n) ~ n. - Charles R Greathouse IV, Nov 02 2022
MATHEMATICA
Select[Range[2000], StringContainsQ[IntegerString[#], "15"] &] (* Paolo Xausa, Feb 25 2024 *)
PROG
(PARI) is_A293875 = has(n, p=15, m=10^#Str(p))=until(p>n\=10, n%m==p&&return(1))
CROSSREFS
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: A092317 A160075 A244872 * A044347 A113527 A044728
KEYWORD
nonn,base,easy
AUTHOR
M. F. Hasler, Oct 18 2017
STATUS
approved