Numbers n such that 10^n + 9^(n+1) is prime.

Terms

a(0) =2a(1) =3a(2) =6a(3) =11a(4) =44a(5) =64a(6) =83a(7) =123a(8) =166a(9) =381a(10) =446a(11) =1221a(12) =1540a(13) =3156a(14) =5117a(15) =5476a(16) =6291a(17) =6353a(18) =13053a(19) =15158a(20) =23904a(21) =78288a(22) =82254a(23) =91230