id:A140112 - OEIS Search Results

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Primes of the form prime(x) + prime(x+1) + (prime(x+1)-prime(x))/2.

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13, 37, 61, 71, 103, 131, 271, 277, 293, 311, 397, 457, 523, 541, 607, 743 (list; graph; listen)

	OFFSET	`1,1`
	EXAMPLE	`5+7+(7-5)/2=5+7+1=13`
	MATHEMATICA	`a = {}; Do[p1 = Prime[n]; p2 = Prime[n + 1]; p = p1 + p2 + (p2 - p1)/2; If[PrimeQ[p], AppendTo[a, p]], {n, 10^2}]; a`
	CROSSREFS	`Sequence in context: A063913 A119705 A045809 this_sequence A089030 A141122 A068228` `Adjacent sequences: A140109 A140110 A140111 this_sequence A140113 A140114 A140115`
	KEYWORD	`nonn`
	AUTHOR	`Vladimir Orlovsky (4vladimir(AT)gmail.com), Jun 21 2008`

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Last modified December 3 14:12 EST 2008. Contains 151279 sequences.