a(1) = 4; 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.
A069616
a(1) = 4; 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) =4a(1) =41a(2) =241a(3) =2411a(4) =32411a(5) =324113a(6) =6324113a(7) =63241133a(8) =1563241133a(9) =15632411339a(10) =815632411339
External references
- oeis: A069616