id:A101896 - OEIS Search Results

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Primes obtained if 2^j for some suitable j is written backward.

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2, 61, 23, 821, 4201, 270131, 61277761, 274359834731, 23888027348153, 86936981079782063, 4243031147170261950811, 272838646828154727511151, 821882010875193363312928672952261 (list; graph; listen)

	OFFSET	`1,1`
	COMMENT	`The relevant exponents are collected in A057708.`
	FORMULA	`a(n)=reverse[2^A057708(n)]`
	EXAMPLE	`Reverse 128, obtain 821, a prime.`
	CROSSREFS	`Sequence in context: A078423 A121493 A078491 this_sequence A130411 A041449 A142729` `Adjacent sequences: A101893 A101894 A101895 this_sequence A101897 A101898 A101899`
	KEYWORD	`base,nonn`
	AUTHOR	`Labos E. (labos(AT)ana.sote.hu), Jan 28 2005`

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Last modified November 30 22:12 EST 2008. Contains 150989 sequences.

AT&T Labs Research