A039998 - OEIS

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A039998

Primes embedded in prime(n).

1, 1, 1, 1, 1, 2, 2, 1, 1, 1, 2, 2, 1, 1, 1, 1, 1, 1, 1, 2, 2, 2, 1, 1, 2, 2, 3, 4, 2, 3, 2, 3, 3, 2, 4, 1, 3, 3, 3, 3, 4, 2, 2, 2, 4, 3, 1, 1, 1, 1, 1, 2, 2, 2, 1, 1, 1, 2, 2, 2, 2, 2, 3, 3, 2, 3, 2, 3, 2, 2, 1, 3, 2, 3, 4, 1, 3, 4, 2, 1, 4, 2, 1, 1, 2, 1, 1, 2, 2, 2, 2, 2, 1, 4, 1, 2, 2, 2, 1, 1, 2, 1, 2, 2, 3

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OFFSET

1,6

COMMENTS

a(n) counts permutations of digits of prime(n) which denote primes.

LINKS

Table of n, a(n) for n=1..105.

FORMULA

a(n) = A039999(prime(n)).

CROSSREFS

Sequence in context: A137865 A052494 A317756 * A316089 A000999 A175921

Adjacent sequences: A039995 A039996 A039997 * A039999 A040000 A040001

KEYWORD

nonn,base

AUTHOR

David W. Wilson

STATUS

approved