cp's OEIS Frontend

A024780 Every suffix prime and no 0 digits in base 5 (written in base 5).

%I A024780 #10 Apr 27 2022 15:01:53
%S A024780 2,3,12,23,32,43,232,243,412,423,2232,4412,4423,22232,222232
%N A024780 Every suffix prime and no 0 digits in base 5 (written in base 5).
%o A024780 (Python)
%o A024780 from sympy import isprime
%o A024780 def afull():
%o A024780     prime_strings, alst = list("23"), []
%o A024780     while len(prime_strings) > 0:
%o A024780         alst.extend(sorted(int(p) for p in prime_strings))
%o A024780         candidates = set(d+p for p in prime_strings for d in "1234")
%o A024780         prime_strings = [c for c in candidates if isprime(int(c, 5))]
%o A024780     return alst
%o A024780 print(afull()) # _Michael S. Branicky_, Apr 27 2022
%Y A024780 Cf. A024779, A024781, A024782, A024783, A024784, A024785.
%K A024780 nonn,base,fini,full
%O A024780 1,1
%A A024780 _David W. Wilson_