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A212201
Records in A212200.
3
1, 3, 15, 85, 255, 21845, 65535, 1431655765, 4294967295
OFFSET
1,2
CROSSREFS
KEYWORD
nonn,more
AUTHOR
N. J. A. Sloane, May 03 2012
EXTENSIONS
a(7)-a(9) from Alex Ryba, Jun 10 2012
STATUS
approved