id:A117293 - OEIS Search Results

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Mersenne primes written in binary.

+0
5

11, 111, 11111, 1111111, 1111111111111, 11111111111111111, 1111111111111111111, 1111111111111111111111111111111, 1111111111111111111111111111111111111111111111111111111111111 (list; graph; listen)

	OFFSET	`1,1`
	COMMENT	`The number of bits in a(n) is equal to A000043(n). - Omar E. Pol (info(AT)polprimos.com), Feb 22 2008`
	REFERENCES	`http://en.wikipedia.org/wiki/Mersenne_prime`
	EXAMPLE	`Third mersenne prime is 31, i.e. 11111 in binary`
	CROSSREFS	`Cf. A000043, A000668.` `Sequence in context: A136982 A083441 A031974 this_sequence A015468 A037842 A131293` `Adjacent sequences: A117290 A117291 A117292 this_sequence A117294 A117295 A117296`
	KEYWORD	`base,nonn`
	AUTHOR	`Jacob Vecht (vecht(AT)alcielo.com), Apr 23 2006`

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Last modified July 26 23:19 EDT 2008. Contains 142293 sequences.

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