Sarrus numbers that become prime when two is added.

Terms

a(0) =561a(1) =645a(2) =1905a(3) =2465a(4) =4371a(5) =23001a(6) =25761a(7) =60701a(8) =87249a(9) =158369a(10) =181901a(11) =206601a(12) =212421a(13) =253241a(14) =280601a(15) =332949a(16) =348161a(17) =513629a(18) =580337a(19) =587861a(20) =656601a(21) =831405a(22) =1207361a(23) =1275681a(24) =1472505a(25) =1489665a(26) =1678541a(27) =1735841a(28) =1815465a(29) =1909001