Numbers n such that 10^n - 69 is prime.

Terms

a(0) =2a(1) =4a(2) =6a(3) =7a(4) =8a(5) =14a(6) =20a(7) =110a(8) =138a(9) =140a(10) =145a(11) =300a(12) =390a(13) =1484a(14) =3194a(15) =3300a(16) =3950a(17) =4986a(18) =5574a(19) =5630a(20) =5874a(21) =8866a(22) =11390a(23) =45130a(24) =86110