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

2, 3, 12, 23, 32, 43, 232, 243, 412, 423, 2232, 4412, 4423, 22232, 222232

Offset: 1

Author

David W. Wilson

Keywords

• nonn
• base
• fini
• full

Crossrefs

Cf. A024779, A024781, A024782, A024783, A024784, A024785.

Programs

Python

from sympy import isprime
def afull():
    prime_strings, alst = list("23"), []
    while len(prime_strings) > 0:
        alst.extend(sorted(int(p) for p in prime_strings))
        candidates = set(d+p for p in prime_strings for d in "1234")
        prime_strings = [c for c in candidates if isprime(int(c, 5))]
    return alst
print(afull()) # Michael S. Branicky, Apr 27 2022