a(1) = 2; a(n+1) = smallest prime > a(n) with leading digit equal to final digit of a(n).

A061448

a(1) = 2; a(n+1) = smallest prime > a(n) with leading digit equal to final digit of a(n).

Terms

    a(0) =2a(1) =23a(2) =31a(3) =101a(4) =103a(5) =307a(6) =701a(7) =1009a(8) =9001a(9) =10007a(10) =70001a(11) =100003a(12) =300007a(13) =700001a(14) =1000003a(15) =3000017a(16) =7000003a(17) =30000001a(18) =100000007a(19) =700000001a(20) =1000000007a(21) =7000000001a(22) =10000000019a(23) =90000000019a(24) =90000000023a(25) =300000000077

External references