Smallest number at distance 2n from nearest prime.

Terms

a(0) =2a(1) =0a(2) =23a(3) =53a(4) =409a(5) =293a(6) =211a(7) =1341a(8) =1343a(9) =2179a(10) =3967a(11) =15705a(12) =16033a(13) =19635a(14) =31425a(15) =24281a(16) =31429a(17) =31431a(18) =31433a(19) =155959a(20) =38501a(21) =58831a(22) =203713a(23) =268343a(24) =206699a(25) =370311a(26) =370313a(27) =370315a(28) =370317a(29) =1349591