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A071392 Reverse of smallest prime factor of n = largest prime factor of n+1; a(1)=1. 0
1, 73, 247, 2573, 2627, 2839, 3379, 5609, 7501, 9113, 9827, 10081, 10877, 11531, 12851, 13949, 14909, 16279, 16367, 17323, 18833, 22151, 26039, 26753, 29749, 31589, 31807, 34099, 35039, 35711, 36517, 36991, 39049, 41353, 43289, 43679 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,2

LINKS

Table of n, a(n) for n=1..36.

EXAMPLE

122329 is here since 122329 = '149'.821 and 122330 = 2.5.13.'941'.

CROSSREFS

Cf. A006530, A020639.

Sequence in context: A158711 A140039 A201715 * A305473 A142434 A128032

Adjacent sequences:  A071389 A071390 A071391 * A071393 A071394 A071395

KEYWORD

base,nonn

AUTHOR

Jason Earls, Jun 12 2002

STATUS

approved

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Last modified November 15 22:20 EST 2018. Contains 317252 sequences. (Running on oeis4.)