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A135623 Mersenne primes written backwards. +0
2
3, 7, 13, 721, 1918, 170131, 782425, 7463847412, 1593963129003485032, 111265944731096246910079816, 721882010875193363312928672952261, 727501488517303786137132964064381141071 (list; graph; listen)
OFFSET

1,1

LINKS

O. E. Pol, Determinacion geometrica de los numeros primos y perfectos.

EXAMPLE

a(3)=13 because the 3rd Mersenne prime is 31.

CROSSREFS

Cf. A000668, A004087.

Sequence in context: A082718 A154821 A084741 this_sequence A089305 A112618 A058027

Adjacent sequences: A135620 A135621 A135622 this_sequence A135624 A135625 A135626

KEYWORD

base,easy,nonn

AUTHOR

Omar E. Pol (info(AT)polprimos.com), Feb 17 2008

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Last modified December 20 00:58 EST 2009. Contains 171054 sequences.


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