a(1) = 11, a(n) = smallest prime obtained by starting with a(n-1) and prefixing it with one or more copies of (the decimal expansion of) n.
A088061
a(1) = 11, a(n) = smallest prime obtained by starting with a(n-1) and prefixing it with one or more copies of (the decimal expansion of) n.
Terms
- a(0) =11a(1) =211a(2) =33211a(3) =44433211a(4) =5544433211a(5) =65544433211
External references
- oeis: A088061