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A135623 Mersenne primes written backwards. 3
3, 7, 13, 721, 1918, 170131, 782425, 7463847412, 1593963129003485032, 111265944731096246910079816, 721882010875193363312928672952261, 727501488517303786137132964064381141071 (list; graph; refs; listen; history; text; internal format)
OFFSET
1,1
LINKS
EXAMPLE
a(3)=13 because the 3rd Mersenne prime is 31.
MATHEMATICA
IntegerReverse[2^MersennePrimeExponent[Range[15]]-1] (* Harvey P. Dale, Feb 26 2023 *)
CROSSREFS
Sequence in context: A154821 A353008 A084741 * A172291 A343589 A089305
KEYWORD
base,easy,nonn
AUTHOR
Omar E. Pol, Feb 17 2008
STATUS
approved

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Last modified March 28 05:39 EDT 2024. Contains 371235 sequences. (Running on oeis4.)