Primes arising in A086920, or 0 if A086920(n) = 0.

A086923

Primes arising in A086920, or 0 if A086920(n) = 0.

Terms

    a(0) =11a(1) =331a(2) =2221a(3) =33331a(4) =333331a(5) =3333331a(6) =33333331a(8) =6666666661a(9) =44444444441a(10) =555555555551

External references