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A096835 Number of primes in the neighborhood of 3^n with radius Ceiling[Log[3^n]]. 0
3, 2, 3, 2, 2, 2, 1, 3, 2, 2, 0, 0, 1, 3, 3, 0, 2, 2, 2, 3, 2, 4, 1, 3, 3, 2, 3, 2, 1, 2, 2, 1, 0, 1, 2, 5, 2, 3, 0, 2, 4, 1, 0, 3, 3, 2, 2, 1, 3, 3, 2, 1, 2, 3, 2, 2, 5, 0, 3, 2, 2, 3, 4, 0, 1, 3, 0, 1, 4, 0, 2, 1, 1, 2, 3, 2, 3, 1, 2, 3, 3, 0, 0, 1, 2, 2, 2, 2, 2, 2, 5, 3, 0, 1, 6, 1, 4, 5, 1, 2, 3, 2, 1, 1, 2 (list; graph; refs; listen; history; internal format)
OFFSET

1,1

FORMULA

a[n] equals almost A096509(3^n)>=a(n) because here only primes are counted, the true prime powers not.

CROSSREFS

Cf. A096509-A096523, A096830-A096840.

Sequence in context: A176102 A096839 A099891 * A064654 A162229 A056564

Adjacent sequences:  A096832 A096833 A096834 * A096836 A096837 A096838

KEYWORD

nonn

AUTHOR

Labos E. (labos(AT)ana.sote.hu), Jul 14 2004

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Last modified February 17 12:38 EST 2012. Contains 206021 sequences.