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a(n) = permanent M_n where M_n is the n X n matrix m(i,j) = Bell(i+j).
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%I #3 Nov 29 2016 07:11:54

%S 1,2,55,27748,344594008,136380529541352,2157772538315935462248,

%T 1668027050325234150218003699928,

%U 75373026050211759045605399079260651909904,234016759373014155226647943608719679545651260629498624

%N a(n) = permanent M_n where M_n is the n X n matrix m(i,j) = Bell(i+j).

%t Flatten[{1, Table[Permanent[Table[BellB[i+j], {i, 1, n}, {j, 1, n}]], {n, 1, 12}]}]

%Y Cf. A000110, A203227.

%K nonn

%O 0,2

%A _Vaclav Kotesovec_, Nov 29 2016