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A176178
Concatenation of perfect numbers written in base 2.
0
1, 1, 0, 1, 1, 1, 0, 0, 1, 1, 1, 1, 1, 0, 0, 0, 0, 1, 1, 1, 1, 1, 1, 1, 0, 0, 0, 0, 0, 0, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1
OFFSET
1,1
COMMENTS
6=110; 28=11100; 496=111110000 etc.
CROSSREFS
Sequence in context: A247795 A030657 A249066 * A267778 A285384 A165728
KEYWORD
nonn,base,easy,less
AUTHOR
Vincenzo Librandi, Apr 10 2010
EXTENSIONS
Edited by N. J. A. Sloane, Apr 13 2010
STATUS
approved