A092733 - OEIS

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A092733

Sum of two consecutive primes of the form 2^x+1 (including Fermat primes and 2).

5, 8, 22, 274, 65794 (list; graph; refs; listen; history; text; internal format)

	OFFSET	`1,1`
	LINKS	`Table of n, a(n) for n=1..5.`
	EXAMPLE	`a(1) = [2^0+1] + [2^(2^0)+1]` `a(2) = [2^(2^0)+1] + [2^(2^1)+1]` `a(3) = [2^(2^1)+1] + [2^(2^2)+1]` `a(4) = [2^(2^2)+1] + [2^(2^3)+1]` `a(5) = [2^(2^3)+1] + [2^(2^4)+1]`
	MATHEMATICA	`Total/@Partition[Select[2^Range[0, 50]+1, PrimeQ], 2, 1] (* Harvey P. Dale, Jun 21 2021 *)`
	CROSSREFS	`Cf. A092506, A019434, A063897.` `Sequence in context: A120042 A120043 A063897 * A116884 A192651 A105963` `Adjacent sequences: A092730 A092731 A092732 * A092734 A092735 A092736`
	KEYWORD	`nonn,more`
	AUTHOR	`Jorge Coveiro, Apr 12 2004`
	EXTENSIONS	`Offset corrected by Arkadiusz Wesolowski, Oct 22 2011`
	STATUS	`approved`

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Last modified December 9 23:05 EST 2022. Contains 358710 sequences. (Running on oeis4.)