login

Year-end appeal: Please make a donation to the OEIS Foundation to support ongoing development and maintenance of the OEIS. We are now in our 61st year, we have over 378,000 sequences, and we’ve reached 11,000 citations (which often say “discovered thanks to the OEIS”).

A121030
Multiples of 10 containing a 10 in their decimal representation.
35
10, 100, 110, 210, 310, 410, 510, 610, 710, 810, 910, 1000, 1010, 1020, 1030, 1040, 1050, 1060, 1070, 1080, 1090, 1100, 1110, 1210, 1310, 1410, 1510, 1610, 1710, 1810, 1910, 2010, 2100, 2110, 2210, 2310, 2410, 2510, 2610, 2710, 2810, 2910, 3010, 3100
OFFSET
1,1
FORMULA
a(n) ~ 10n. - Charles R Greathouse IV, Feb 12 2017
MATHEMATICA
Select[10*Range[1000], StringContainsQ[IntegerString[#], "10"] &] (* Paolo Xausa, Feb 25 2024 *)
KEYWORD
nonn,base,easy
AUTHOR
Reinhard Zumkeller, Jul 21 2006
STATUS
approved