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A205147 The index j<k such that n divides s(k)-s(j), where k is the least index (A205146) for which such j exists, and s(k)=prime(k)*prime(k+1). 2
1, 2, 1, 2, 2, 3, 3, 2, 1, 2, 4, 3, 5, 3, 5, 2, 6, 3, 7, 2, 3, 4, 8, 4, 9, 5, 3, 2, 1, 5, 2, 2, 4, 6, 1, 3, 11, 7, 5, 4, 4, 3, 1, 2, 5, 8, 1, 4, 5, 9, 6, 2, 15, 3, 11, 11, 7, 9, 4, 5 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,2

COMMENTS

For a guide to related sequences, see A204892.

LINKS

Table of n, a(n) for n=1..60.

MATHEMATICA

(See the program at A205146.)

CROSSREFS

Cf. A205146, A204892.

Sequence in context: A224493 A129193 A262446 * A319447 A224961 A056812

Adjacent sequences:  A205144 A205145 A205146 * A205148 A205149 A205150

KEYWORD

nonn

AUTHOR

Clark Kimberling, Jan 25 2012

STATUS

approved

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Last modified October 16 18:38 EDT 2019. Contains 328102 sequences. (Running on oeis4.)