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a(n) = floor(exp(7/24)*n!).
0

%I #8 Apr 09 2020 00:52:19

%S 1,2,8,32,160,963,6746,53974,485771,4857717,53434892,641218712,

%T 8335843266,116701805732,1750527085987,28008433375798,476143367388568,

%U 8570580612994224,162841031646890261,3256820632937805228

%N a(n) = floor(exp(7/24)*n!).

%t With[{c = Exp[7/24]}, Floor[c * #] & /@ (Range[20]!)] (* _Jinyuan Wang_, Apr 08 2020 *)

%K nonn,easy

%O 1,2

%A _Simon Plouffe_