Reversible primes with k digits, of the form concat(a,b), such that, with all the possible k-1 concatenation of two numbers a and b, we get k-1 primes (a mod b) and the sum of these k-1 primes is a reversible prime itself.

A346559

Reversible primes with k digits, of the form concat(a,b), such that, with all the possible k-1 concatenation of two numbers a and b, we get k-1 primes (a mod b) and the sum of these k-1 primes is a reversible prime itself.