OFFSET
1,1
COMMENTS
These are the numbers whose decimal expansion contains the substring "12", with the '2' being the i-th digit for some i with i modulo 3 = 1 and the least significant digit having index 1.
These are the numbers whose names contain 'twelve' in English.
EXAMPLE
612 is 'sechshundertzwölf' in German, containing the letter Ö. Therefore 612 is a term of the sequence.
CROSSREFS
KEYWORD
nonn,word
AUTHOR
Felix Fröhlich, Dec 19 2015
STATUS
approved