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A247148 Primes p that divide LS(p), where LS is the "Look and Say" function (A045918). 0
2, 5, 108947, 4940867 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,1

LINKS

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

Chris K. Caldwell and G. L. Honaker, Prime Curio for 108947

EXAMPLE

a(2)=5, because 5 is prime and divides LS(5) or 15.

CROSSREFS

Cf. A000040, A045918, A079342.

Sequence in context: A323338 A057678 A090071 * A139062 A241861 A122760

Adjacent sequences:  A247145 A247146 A247147 * A247149 A247150 A247151

KEYWORD

nonn,more,hard,base

AUTHOR

G. L. Honaker, Jr., Nov 20 2014

EXTENSIONS

a(4) from Alois P. Heinz, Nov 20 2014

STATUS

approved

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Last modified January 22 12:13 EST 2019. Contains 319363 sequences. (Running on oeis4.)