A362941 Numbers of the form (p+1)*(p+3) where (p,p+2) is a twin prime pair (cf. A001359).

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

Michael De Vlieger, Table of n, a(n) for n = 1..10000

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

Cf. A001359, A108604.

Sequence in context: A073763 A359750 A292834 * A030021 A269036 A268486

Adjacent sequences: A362938 A362939 A362940 * A362942 A362943 A362944

Keyword

nonn

Author

N. J. A. Sloane, Sep 10 2023, following a suggestion from Jean-Claude Babois.

Status

approved