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A122809 Bisection of first difference/2 of A084696. 1
1, 3, 6, 9, 12, 6, 3, 9, 6, 27, 9, 3, 15, 12, 30, 3, 6, 24, 36, 27, 15, 9, 21, 15, 24, 36, 39, 18, 12, 3, 57, 3, 45, 51, 42, 33, 12, 9, 75, 48, 21, 57, 18, 24, 27, 15, 6, 18, 12, 138, 9, 6, 30, 60, 39, 117, 3, 21, 24, 21, 42, 15, 24, 45, 63, 6, 15, 15, 42, 153, 9, 15, 45, 141, 39, 12 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,2

COMMENTS

Half the difference of the prime pair added to A084696 at each step.

LINKS

Table of n, a(n) for n=1..76.

FORMULA

a(n) = (A084696(2n+1) - A084696(2n))/2.

CROSSREFS

Cf. A084696.

Sequence in context: A198514 A242088 A103695 * A066662 A329517 A297567

Adjacent sequences:  A122806 A122807 A122808 * A122810 A122811 A122812

KEYWORD

nonn

AUTHOR

Ray Chandler, Sep 26 2006

STATUS

approved

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Last modified January 28 23:12 EST 2022. Contains 350670 sequences. (Running on oeis4.)