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 A260128 Primes that contain only the digits (2, 3, 9). 2

%I #16 Sep 08 2022 08:46:13

%S 2,3,23,29,223,229,233,239,293,929,2239,2293,2333,2339,2393,2399,2939,

%T 2999,3229,3299,3323,3329,3923,3929,9239,9293,9323,9923,9929,22229,

%U 22993,23293,23333,23339,23399,23929,23993,29333,29339,29399,32233,32299,32323

%N Primes that contain only the digits (2, 3, 9).

%C A020458 and A020460 are subsequences.

%H Alois P. Heinz, <a href="/A260128/b260128.txt">Table of n, a(n) for n = 1..10000</a>

%t Select[Prime[Range[4 10^3]], Complement[IntegerDigits[#], {2, 3, 9}]=={} &]

%o (Magma) [p: p in PrimesUpTo(300000) | Set(Intseq(p)) subset [2, 3, 9]];

%Y Cf. similar sequences listed in A260125.

%Y Cf. A020458, A020460.

%K nonn,easy,base

%O 1,1

%A _Vincenzo Librandi_, Jul 17 2015

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Last modified June 12 23:30 EDT 2024. Contains 373362 sequences. (Running on oeis4.)