id:A127729 - OEIS Search Results

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Primes of the form k# + (k+1)#,..,+(k+x)#+1; where k#,(k+1)#,(k+x)# are primorials numbers, members of A002110.

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7, 37, 2557, 32587, 543097, 10242787, 207263519017, 13394639596851067, 41295598995285955839203627497, 29987151430893484246716697508064240936086917614616072924464106966030597 (list; graph; listen)

	OFFSET	`1,1`
	FORMULA	`prime(a)=A002110(n)+A002110(n+1)+...A002110(n+x) +1`
	EXAMPLE	`7=A002110(3) +1 = 6+1;37= A002110(3)+A002110(4)+1 = 6+30+1; 2557= A002110(3)+A002110(4)+A002110(5)+A002110(6)+1= 6+30+210+2310 +1; 32587=A002110(3)+A002110(4)+A002110(5)+A002110(6)+A002110(7)+1=6+30+210+2310+30030+1`
	CROSSREFS	`Cf. A125191; A002110.` `Adjacent sequences: A127726 A127727 A127728 this_sequence A127730 A127731 A127732` `Sequence in context: A082687 A117731 A080174 this_sequence A129736 A003352 A034858`
	KEYWORD	`nonn`
	AUTHOR	`Tomas Xordan (xordan.tom(AT)gmail.com), Apr 03 2007`

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Last modified October 7 14:39 EDT 2008. Contains 144666 sequences.

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