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”).

A044365
Numbers n such that string 3,3 occurs in the base 10 representation of n but not of n-1.
0
33, 133, 233, 330, 433, 533, 633, 733, 833, 933, 1033, 1133, 1233, 1330, 1433, 1533, 1633, 1733, 1833, 1933, 2033, 2133, 2233, 2330, 2433, 2533, 2633, 2733, 2833, 2933, 3033, 3133, 3233, 3300, 3433, 3533, 3633, 3733, 3833
OFFSET
1,1
CROSSREFS
Sequence in context: A209981 A036546 A043502 * A044746 A105091 A158588
KEYWORD
nonn,base
STATUS
approved