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

Terms

a(0) =24a(1) =48a(2) =168a(3) =360a(4) =960a(5) =1848a(6) =3720a(7) =5328a(8) =10608a(9) =11880a(10) =19320a(11) =22800a(12) =32760a(13) =37248a(14) =39600a(15) =52440a(16) =58080a(17) =73440a(18) =80088a(19) =97968a(20) =121800a(21) =177240a(22) =187488a(23) =214368a(24) =273528a(25) =326040a(26) =361200a(27) =383160a(28) =413448a(29) =436920