A081508 - OEIS

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A081508

Primes of form 1+3^n+5^n.

3, 244672067, 14551915378461487103639747, 3552713678880267372432493847753987, 211758236813575107295480170109084902352995775163267 (list; graph; refs; listen; history; internal format)

	OFFSET	`1,1`
	MATHEMATICA	`Do[s=1^w+3^w+5^w; If[IntegerQ[w/100], Print[{w}]]; If[PrimeQ[s], Print[{w, s}]], {w, 0, 1000}]`
	CROSSREFS	`Sequence in context: A137131 A117721 A058469 * A067481 A058433 A154998` `Adjacent sequences: A081505 A081506 A081507 * A081509 A081510 A081511`
	KEYWORD	`nonn`
	AUTHOR	`Labos E. (labos(AT)ana.sote.hu), Apr 15 2003`

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Last modified February 16 13:48 EST 2012. Contains 205921 sequences.