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A242716 Composite numbers of the form A242489(n) - 3. 2
12317, 50637287, 147111617, 5174048597 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,1

COMMENTS

a(5) (if it exists) = A242489(k) - 3, k >= 5 * 10^7. - Hiroaki Yamanouchi, Sep 22 2014

LINKS

Table of n, a(n) for n=1..4.

EXAMPLE

a(1) = A242489(25) - 3 = 12317 = 109 * 113;

a(2) = A242489(900) - 3 = 50637287 = 7103 * 7129;

a(3) = A242489(1436) - 3 = 147111617 = 12097 * 12161;

a(4) = A242489(7084) - 3 = 5174048597 = 71789 * 72073.

CROSSREFS

Cf. A242489, A242490, A242770.

Sequence in context: A251776 A045084 A250856 * A077186 A077189 A277947

Adjacent sequences:  A242713 A242714 A242715 * A242717 A242718 A242719

KEYWORD

nonn,more

AUTHOR

Vladimir Shevelev and Peter J. C. Moses, May 21 2014

EXTENSIONS

a(4) from Hiroaki Yamanouchi, Sep 22 2014

STATUS

approved

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Last modified December 11 21:00 EST 2019. Contains 329937 sequences. (Running on oeis4.)