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A135633
Nearest-neighbors of Mersenne primes, divided by 2.
0
1, 2, 3, 4, 15, 16, 63, 64, 4095, 4096, 65535, 65536, 262143, 262144, 1073741823, 1073741824, 1152921504606846975, 1152921504606846976, 309485009821345068724781055, 309485009821345068724781056
OFFSET
1,2
CROSSREFS
Sequence in context: A065812 A081350 A173320 * A269725 A270929 A103096
KEYWORD
easy,nonn
AUTHOR
Omar E. Pol, Nov 27 2007
STATUS
approved