OFFSET
1,1
COMMENTS
There are large gaps in this sequence. For any n>=2 the number 2^2n - 2^n + 1 and the following 2^2n + 2^(n+1) - 3 natural numbers will definitely not occur in this sequence.
CROSSREFS
KEYWORD
base,easy,nonn
AUTHOR
Frank Schwellinger (nummer_eins(AT)web.de), Mar 19 2004
STATUS
approved