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A122845 Triangle read by rows, 3<=k<=n: T(n,k) = smallest prime p such that 2*k-p and 2*n-p are prime, T(n,k) = 0 if no such p exists. 2
3, 3, 3, 3, 3, 3, 0, 5, 5, 5, 3, 3, 3, 7, 3, 3, 3, 3, 5, 3, 3, 0, 5, 5, 5, 7, 5, 5, 3, 3, 3, 7, 3, 3, 7, 3, 3, 3, 3, 5, 3, 3, 5, 3, 3, 0, 5, 5, 5, 7, 5, 5, 7, 5, 5, 3, 3, 3, 7, 3, 3, 7, 3, 3, 7, 3, 0, 5, 5, 5, 11, 5, 5, 17, 5, 5, 23, 5, 0, 0, 7, 7, 7, 11, 7, 7, 11, 7, 7, 11, 7, 3, 3, 3, 0, 3, 3, 13, 3, 3, 13 (list; table; graph; refs; listen; history; text; internal format)
OFFSET

3,1

COMMENTS

T(A098090(n),3) = 2*A098090(n) - A085090(A098090(n)-1) = 3.

LINKS

Table of n, a(n) for n=3..103.

Index entries for sequences related to Goldbach conjecture

Eric Weisstein's World of Mathematics, Goldbach Partition

CROSSREFS

Sequence in context: A141605 A251551 A073139 * A135203 A251552 A179804

Adjacent sequences:  A122842 A122843 A122844 * A122846 A122847 A122848

KEYWORD

nonn,tabl

AUTHOR

Reinhard Zumkeller, Sep 14 2006

STATUS

approved

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Last modified August 17 16:51 EDT 2017. Contains 290648 sequences.