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%I #8 Jan 03 2025 18:41:52
%S 8,55,60,61,228,440,455,550,555,568,578,1508,1774,1778,1795,1796,1808,
%T 2218,2222,2308,2411,2519,2520,2834,2843,2885,3304,3386,3440,4000,
%U 4281,4390,4906,4994,4999,5090,5110,9777,9788,9966,10239,11780,11882,11930,12330,13873,13887,14259
%N Numbers k such that prime(k) and prime(k) + 9*k are anagrams.
%e prime(8) = 19 and prime(8) + 9 * 8 = 91 are anagrams.
%e prime(55) = 257 and prime(55) + 9 * 55 = 752 are anagrams.
%e prime(60) = 281 and prime(60) + 9 * 60 = 821 are anagrams.
%e prime(61) = 283 and prime(61) + 9 * 61 = 832 are anagrams.
%e prime(228) = 1439 and prime(228) + 9 * 228 = 3491 are anagrams.
%t Select[Range[10000], Sort[IntegerDigits[Prime[#]]] == Sort[IntegerDigits[Prime[#]+9#]] &] (* _Stefano Spezia_, Jan 01 2025 *)
%o (Magma)[n: n in [1..2*10^4] | Sort(Intseq(NthPrime(n))) eq Sort(Intseq(NthPrime(n) + 9*n))]; // _Vincenzo Librandi_, Jan 01 2025
%Y Cf. A379208.
%K nonn,base,new
%O 1,1
%A _Jean-Marc Rebert_, Dec 31 2024