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%I #8 Sep 03 2022 21:57:53
%S 2,4,14,59,296,1779,12455,99644,896801,8968011,98648121,1183777460,
%T 15389106991,215447497884,3231712468264,51707399492232,
%U 879025791367949,15822464244623086,300626820647838642,6012536412956772858
%N a(n) = floor( exp(19/21)*n! ).
%t Floor[Exp[19/21]Range[20]!] (* _Harvey P. Dale_, Jun 28 2021 *)
%K nonn
%O 1,1
%A _Simon Plouffe_
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