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A362941
Numbers of the form (p+1)*(p+3) where (p,p+2) is a twin prime pair (cf. A001359).
1
24, 48, 168, 360, 960, 1848, 3720, 5328, 10608, 11880, 19320, 22800, 32760, 37248, 39600, 52440, 58080, 73440, 80088, 97968, 121800, 177240, 187488, 214368, 273528, 326040, 361200, 383160, 413448, 436920, 657720, 677328, 687240, 737880, 779688, 1042440, 1067088, 1104600
OFFSET
1,1
LINKS
FORMULA
a(n) = A108604(n) - 1. - Amiram Eldar, Sep 10 2023
MATHEMATICA
((# + 1)*(# + 3)) & /@ Select[Prime[Range[200]], PrimeQ[# + 2] &] (* Amiram Eldar, Sep 10 2023 *)
CROSSREFS
Sequence in context: A073763 A359750 A292834 * A030021 A269036 A268486
KEYWORD
nonn
AUTHOR
N. J. A. Sloane, Sep 10 2023, following a suggestion from Jean-Claude Babois.
STATUS
approved