Primes formed by the concatenation 1, n, n^2, n, 1.
A068676
Primes formed by the concatenation 1, n, n^2, n, 1.
Terms
- a(0) =12421a(1) =13931a(2) =163661a(3) =186481a(4) =115225151a(5) =121441211a(6) =122484221a(7) =124576241a(8) =131961311a(9) =1502500501a(10) =1512601511a(11) =1603600601a(12) =1674489671a(13) =1735329731a(14) =1806400801a(15) =1816561811
External references
- oeis: A068676