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%I #8 Dec 17 2012 10:36:03
%S 1,1,1,3,9,38,211,1381,10451,89575,857352,9063435,104876888,
%T 1318452296,17893281148,260730668151,4059948975491,67279154450986,
%U 1182190856781604,21954973054515490,429690186924088871
%N Ceiling of GAMMA(n+4/7)/GAMMA(4/7).
%p Digits := 64:f := proc(n,x) ceil(GAMMA(n+x)/GAMMA(x)); end;
%Y Cf. A220609.
%K nonn
%O 0,4
%A _Simon Plouffe_