%I A108632
%S A108632 22,25,33,35,55,57,77,235,237,253,323,327,335,355,377,527,533,535,537,
%T A108632 553,573,723,737,753,755,2227,2253,2257,2323,2327,2335,2353,2533,2537,
%U A108632 2573,2577,2722,2723,2733,2735,2757,2773,3223,3227,3233,3235,3273,3277
%N A108632 Semiprimes with prime digits (only digits 2,3,5,7 in semiprimes).
%C A108632 Complement of 108631 in the class of semiprimes.
%t A108632 fQ[n_]:=Plus@@Last/@FactorInteger[n]==2&&Union[{2, 3, 5, 7}, IntegerDigits[n]]=={2,
3, 5, 7};Select[Range[4000], fQ[ # ]&]
%Y A108632 Cf. A108631.
%Y A108632 Sequence in context: A092631 A061371 A070809 this_sequence A045096 A124177
A160078
%Y A108632 Adjacent sequences: A108629 A108630 A108631 this_sequence A108633 A108634
A108635
%K A108632 nonn,base
%O A108632 1,1
%A A108632 Zak Seidov (zakseidov(AT)yahoo.com), Jun 13 2005
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