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A205675 (prime(k)-prime(j))/3:  (A205557)/3. 4
1, 3, 2, 2, 5, 4, 2, 4, 2, 7, 6, 4, 2, 9, 8, 6, 4, 2, 8, 6, 4, 10, 8, 6, 2, 13, 12, 10, 8, 6, 4, 12, 10, 8, 4, 2, 15, 14, 12, 10, 8, 6, 2, 17, 16, 14, 12, 10, 8, 4, 2, 19, 18, 16, 14, 12, 10, 6, 4, 2, 18, 16, 14, 10, 8, 6, 20, 18, 16, 12, 10, 8, 2, 23, 22, 20, 18, 16, 14, 10 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,2

COMMENTS

For a guide to related sequences, see A205558.

LINKS

Table of n, a(n) for n=1..80.

EXAMPLE

(See the example at A205560.)

MATHEMATICA

(See the program at A205560.)

CROSSREFS

Cf. A205674, A205559, A205560, A205558.

Sequence in context: A309045 A210956 A282161 * A342331 A058608 A112196

Adjacent sequences:  A205672 A205673 A205674 * A205676 A205677 A205678

KEYWORD

nonn

AUTHOR

Clark Kimberling, Jan 30 2012

STATUS

approved

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Last modified August 4 02:14 EDT 2021. Contains 346441 sequences. (Running on oeis4.)