a(1) = 1; a(2n) = smallest prime starting (most significant digits) with a(2n-1). a(2n+1) = smallest prime ending (least significant digits) in a(2n).

A069628

a(1) = 1; a(2n) = smallest prime starting (most significant digits) with a(2n-1). a(2n+1) = smallest prime ending (least significant digits) in a(2n).

Terms

    a(0) =1a(1) =11a(2) =211a(3) =2111a(4) =22111a(5) =2211109a(6) =92211109a(7) =9221110901a(8) =29221110901

External references