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%I #14 Nov 25 2021 08:48:52
%S 1,1,1,8,62,568,5370,114546,2898058,0
%N Number of primes having exactly the same digits as appear in first n primes.
%C a(n) = 0 if sum of digits is a multiple of three (see A103208). - _Ray Chandler_, Apr 07 2010
%e a(4)=8 because the first three prime n, concatenated, are 2+3+5+7 or 2357. There are 8 prime arrangements: 2357 2753 3257 3527 5237 5273 7253 7523.
%o (Python)
%o from sympy import isprime, prime
%o from sympy.utilities.iterables import multiset_permutations
%o def A053095(n):
%o return sum(1 for d in multiset_permutations(''.join(str(prime(m+1)) for m in range(n))) if isprime(int(''.join(d)))) # _Chai Wah Wu_, Mar 17 2019
%Y Cf. A054260, A053160, A053161, A103208.
%K base,nonn,more
%O 1,4
%A _Enoch Haga_, Mar 19 2000
%E a(7)-a(9) from _Ray Chandler_, Apr 07 2010
%E a(10) from _Ray Chandler_, Apr 08 2010
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