Difference between first prime > 10^n (A003617) and 10^n.

Terms

a(0) =1a(1) =1a(2) =1a(3) =9a(4) =7a(5) =3a(6) =3a(7) =19a(8) =7a(9) =7a(10) =19a(11) =3a(12) =39a(13) =37a(14) =31a(15) =37a(16) =61a(17) =3a(18) =3a(19) =51a(20) =39a(21) =117a(22) =9a(23) =117a(24) =7a(25) =13a(26) =67a(27) =103a(28) =331a(29) =319