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A092939 Index of the first occurrence of prime(n) in A092938. 2
1, 2, 10, 8, 52, 18, 57, 36, 96, 40, 110, 249, 154, 328, 123, 288, 495, 125, 826, 343, 546, 431, 670, 833, 694, 1555, 216, 1399, 1195, 1620, 1780, 3843, 2920, 647, 7722, 873, 7492, 4485, 6768, 8201, 7991, 5178, 11744, 2669, 16060, 5809, 11149, 18177, 5307 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,2

COMMENTS

Smallest k such that prime(n) = A092938(k).

LINKS

Table of n, a(n) for n=1..49.

EXAMPLE

First occurrence of prime(6) = 13 is A092938(18), so a(6) = 18.

PROG

(PARI) {v=vector(50); for(n=1, 20000, k=2*prime(n); j=1; while(!isprime(k-prime(j)), j=j+1); if(j<=z&&v[j]==0, v[j]=n)); for(i=1, #v, print1(v[i], ", "))}

CROSSREFS

Cf. A092938, A092940.

Sequence in context: A166542 A316967 A189711 * A006610 A227716 A033839

Adjacent sequences:  A092936 A092937 A092938 * A092940 A092941 A092942

KEYWORD

nonn

AUTHOR

Amarnath Murthy, Mar 23 2004

EXTENSIONS

Edited and extended by Klaus Brockhaus, Dec 23 2006

STATUS

approved

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Last modified April 20 09:59 EDT 2019. Contains 322309 sequences. (Running on oeis4.)