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Cf. A019546 primes whose digits are primes, A092629 number of prime digits is nonprime, A104250 sum of prime digits of n-th prime.
The prime A000040(n) is in A034844 iff a(n) = 0; it is in A179336 iff a(n) > 0. [From Reinhard Zumkeller, Jul 11 2010, corrected by M. F. Hasler, Aug 27 2012]
a(n) = A193238(A000040(n)). [Reinhard Zumkeller, Jul 19 2011]
Reinhard Zumkeller, Table of n, a(n) for n = 1..10000
Cf. A019546, A092629, A104250.
Sequence in context: A137412 A025925 A240857 * A079066 A157188 A173266
Adjacent sequences: A109063 A109064 A109065 * A109067 A109068 A109069
Zak Seidov, Jun 17 2005