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A043364 Numbers having four 3's in base 5. 1

%I

%S 468,1093,1718,1968,2093,2218,2268,2293,2318,2328,2333,2338,2340,2341,

%T 2342,2344,2348,2368,2468,2968,3593,4218,4843,5093,5218,5343,5393,

%U 5418,5443,5453,5458,5463,5465,5466,5467,5469,5473

%N Numbers having four 3's in base 5.

%H David A. Corneth, <a href="/A043364/b043364.txt">Table of n, a(n) for n = 1..10000</a>

%o (PARI) isok(k) = #select(x->(x==3), digits(k, 5)) == 4; \\ _Michel Marcus_, Apr 24 2021

%Y Cf. A007091.

%K nonn,base

%O 1,1

%A _Clark Kimberling_

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Last modified May 18 08:30 EDT 2022. Contains 353785 sequences. (Running on oeis4.)