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A172079 First differences of A181669. 0
6, 12, 24, 12, 48, 60, 12, 48, 120, 12, 480, 180, 300, 48, 120, 132, 408, 180, 792, 120, 48, 300, 660, 132, 288, 240, 12, 300, 540, 240, 780, 120, 48, 732, 1260, 1188, 600, 1092, 408, 432, 1848, 480 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,1

LINKS

Table of n, a(n) for n=1..42.

MATHEMATICA

Differences[Select[6*Range[3000]-1, PrimeQ[#]&&PrimeOmega[#-1]==2&&AnyTrue[ {#+2, Sqrt[#+2]}, PrimeQ]&]] (* Harvey P. Dale, Jul 01 2022 *)

CROSSREFS

Cf. A181669.

Sequence in context: A192754 A005694 A309359 * A081512 A096387 A094185

Adjacent sequences: A172076 A172077 A172078 * A172080 A172081 A172082

KEYWORD

nonn,easy

AUTHOR

Giovanni Teofilatto, Nov 19 2010

EXTENSIONS

a(21) ff. corrected by Georg Fischer, Aug 31 2020

STATUS

approved

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Last modified December 10 02:09 EST 2022. Contains 358712 sequences. (Running on oeis4.)