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A210692 Number of parts that are visible in one of the three views of the shell model of partitions with n regions mentioned in A210991.

%I A210692 #15 May 24 2012 13:06:49
%S A210692 1,3,6,6,11,11,18,18,18,18,29,29,29,29,44,44,44,44,44,44,44,66,66,66,
%T A210692 66,66,66,66,66,96,96,96,96,96,96,96,96,96,96,96,96,138,138,138,138,
%U A210692 138,138,138,138,138,138,138,138,138,138,194,194,194,194,194,194,194,194,194,194,194,194,194,194,194
%N A210692 Number of parts that are visible in one of the three views of the shell model of partitions with n regions mentioned in A210991.
%C A210692 For the definition of "regions of n" see A206437.
%F A210692 a(A000041(n)) = A026905(n).
%e A210692 Written as a triangle begins:
%e A210692 1,
%e A210692 3,
%e A210692 6,
%e A210692 6, 11,
%e A210692 11,18,
%e A210692 18,18,18,29,
%e A210692 29,29,29,44,
%e A210692 44,44,44,44,44,44,66,
%e A210692 66,66,66,66,66,66,66,96,
%e A210692 96,96,96,96,96,96,96,96,96,96,96,138;
%Y A210692 Row j has length A187219(j). Right border gives A026905.
%Y A210692 Cf. A000041, A135010, A138121, A182703, A186114, A194803, A194805, A206437, A210991.
%K A210692 nonn,tabf
%O A210692 1,2
%A A210692 _Omar E. Pol_, May 24 2012