id:A065305 - OEIS Search Results

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Triangular array giving means of two odd primes: T(n,k) = (n-th prime + k-th prime)/2, n >= k >= 2.

+0
5

3, 4, 5, 5, 6, 7, 7, 8, 9, 11, 8, 9, 10, 12, 13, 10, 11, 12, 14, 15, 17, 11, 12, 13, 15, 16, 18, 19, 13, 14, 15, 17, 18, 20, 21, 23, 16, 17, 18, 20, 21, 23, 24, 26, 29, 17, 18, 19, 21, 22, 24, 25, 27, 30, 31, 20, 21, 22, 24, 25, 27, 28, 30, 33, 34, 37, 22, 23, 24, 26, 27, 29, 30 (list; table; graph; listen)

	OFFSET	`2,1`
	LINKS	`Index entries for sequences related to Goldbach conjecture`
	EXAMPLE	`3; 4,5; 5,6,7; 7,8,9,11; ...`
	MAPLE	`seq(seq((ithprime(i)+ithprime(j))/2, j=2..i), i=2..20)`
	CROSSREFS	`Cf. A065306.` `a(n, k) = A065342(n, k)/2 [but note different offsets]` `Sequence in context: A119476 A037038 A106501 this_sequence A009070 A116183 A061146` `Adjacent sequences: A065302 A065303 A065304 this_sequence A065306 A065307 A065308`
	KEYWORD	`easy,nonn,tabl`
	AUTHOR	`Klaus Strassburger (strass(AT)ddfi.uni-duesseldorf.de), Oct 29 2001`

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Last modified July 26 13:41 EDT 2008. Contains 142293 sequences.

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