Search: id:A130201
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%I A130201
%S A130201 2,42,56,110,182,342,506,552,702,812,930,992,1190,1332,1640,1722,2162,
%T A130201 2450,2756,2862,2970,3080,3306,3540,3782,4422,4692,4970,5700,6006,6320,
%U A130201 6480,6806,7310,7832,8372,8742,9120,9506,9900
%N A130201 Odious oblong (pronic) numbers.
%F A130201 a(n) = 2*A130202(n). Multiplication by 2 preserves odiousness, hence 
               this sequence is twice odious triangular numbers.
%t A130201 Select[Table[n(n + 1), {n, 100}], OddQ[Plus @@ IntegerDigits[ #, 2]] 
               &]
%Y A130201 Cf. This sequence is the intersection of odious (A000069) and oblong 
               (A002378) numbers.
%Y A130201 Sequence in context: A113634 A098634 A076391 this_sequence A076392 A048373 
               A066563
%Y A130201 Adjacent sequences: A130198 A130199 A130200 this_sequence A130202 A130203 
               A130204
%K A130201 nonn
%O A130201 0,1
%A A130201 Tanya Khovanova (tanyakh(AT)yahoo.com), May 16 2007

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