%I #5 Jun 10 2018 13:30:09
%S 1,6,27,108,409,1558,5692,21328,76468,282885,999383,3656887,12772925,
%T 46306978,160408850,577077226,1987559778,7105490315,24379316121,
%U 86719101209,296819500851,1051663900480,3594472289644,12696988924724,43364647235536,152825304753761
%N Number of set partitions of [n] with alternating parity of elements and exactly six blocks.
%H Wikipedia, <a href="https://en.wikipedia.org/wiki/Partition_of_a_set">Partition of a set</a>
%Y Column k=6 of A274581.
%K nonn
%O 6,2
%A _Alois P. Heinz_, Jun 10 2018
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