a(1) = 8; a(2n) = smallest prime that is a right concatenation of a(2n-1) and a number with no insignificant zeros and a(2n+1) = smallest prime ending in ( the least significant digits) a(2n-1). Alternate left and right concatenation yielding primes.
A069620
a(1) = 8; a(2n) = smallest prime that is a right concatenation of a(2n-1) and a number with no insignificant zeros and a(2n+1) = smallest prime ending in ( the least significant digits) a(2n-1). Alternate left and right concatenation yielding primes.
Terms
- a(0) =8a(1) =83a(2) =283a(3) =2833a(4) =32833a(5) =328331a(6) =2328331a(7) =232833127a(8) =3232833127a(9) =323283312749
External references
- oeis: A069620