A098640 - OEIS

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A098640

2^p + 1 where p is prime.

5, 9, 33, 129, 2049, 8193, 131073, 524289, 8388609, 536870913, 2147483649, 137438953473, 2199023255553, 8796093022209, 140737488355329, 9007199254740993, 576460752303423489, 2305843009213693953 (list; graph; refs; listen; history; text; internal format)

	OFFSET	`1,1`
	LINKS	`Table of n, a(n) for n=1..18.`
	EXAMPLE	`If p=2, 2^2+1 = 5` `If p=7, 2^7+1 = 129`
	MATHEMATICA	`Table[2^Prime[n] + 1, {n, 18}] (from Robert G. Wilson v Nov 01 2004)`
	CROSSREFS	`Sequence in context: A116390 A028351 A211952 * A083832 A070969 A200376` `Adjacent sequences: A098637 A098638 A098639 * A098641 A098642 A098643`
	KEYWORD	`nonn,easy`
	AUTHOR	`Parthasarathy Nambi, Oct 27 2004`
	EXTENSIONS	`More terms from Robert G. Wilson v, Nov 01 2004`
	STATUS	`approved`

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Last modified December 9 01:34 EST 2013. Contains 233130 sequences.