A082597 Number of sets of consecutive primes whose arithmetic mean is an integer, the largest prime of a set is n-th prime.

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

Links

Table of n, a(n) for n=1..100.

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

Adjacent sequences: A082594 A082595 A082596 * A082598 A082599 A082600

Keyword

easy,nonn

Author

Naohiro Nomoto, May 08 2003

Status

approved