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A049849 a(n)=number of primes q less than n-th prime p for which the Euclidean algorithm for p,q has exactly 3 nonzero remainders. 0
0, 0, 0, 0, 1, 1, 1, 1, 4, 2, 2, 3, 1, 3, 6, 7, 5, 5, 4, 8, 5, 5, 10, 9, 6, 4, 5, 7, 8, 9, 6, 8, 8, 6, 8, 7, 5, 8, 9, 10, 13, 7, 10, 9, 8, 9, 8, 7, 7, 11, 11, 14, 13, 14, 15 (list; graph; refs; listen; history; internal format)
OFFSET

1,9

EXAMPLE

Example: for p(9)=23, the primes counted are 5,13,17,19.

CROSSREFS

Sequence in context: A198101 A058634 A037919 * A112349 A062072 A140395

Adjacent sequences:  A049846 A049847 A049848 * A049850 A049851 A049852

KEYWORD

nonn

AUTHOR

Clark Kimberling (ck6(AT)evansville.edu)

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Last modified February 16 20:11 EST 2012. Contains 205961 sequences.