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A082597
Number of sets of consecutive primes whose arithmetic mean is an integer, the largest prime of a set is n-th prime.
0
1, 1, 2, 3, 2, 3, 3, 4, 4, 4, 3, 4, 3, 6, 5, 6, 4, 4, 6, 5, 7, 4, 6, 5, 5, 7, 6, 5, 7, 6, 7, 8, 5, 4, 5, 7, 9, 5, 2, 7, 6, 7, 9, 6, 5, 8, 6, 7, 9, 4, 10, 8, 7, 9, 6, 5, 6, 7, 6, 7, 6, 6, 7, 8, 10, 7, 6, 6, 8, 6, 7, 8, 9, 7, 9, 7, 9, 5, 8, 5, 8, 7, 8, 11, 9, 11, 8, 10, 9, 12, 10, 5, 14, 6, 12, 5, 3, 9, 4, 6
OFFSET
1,3
EXAMPLE
a(4) = 3: the largest prime of a set is 4th prime. the three sets are 7/1 = 7, (5+7)/2 = 6, (3+5+7)/3 = 5.
CROSSREFS
Sequence in context: A257213 A205780 A204905 * A112212 A102314 A205146
KEYWORD
easy,nonn
AUTHOR
Naohiro Nomoto, May 08 2003
STATUS
approved