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Numbers of the form (n!*(n+1))/2 with n or (n+1) prime.
0

%I #8 Sep 23 2021 06:28:58

%S 1,3,12,60,360,2520,20160,19958400,239500800,3113510400,43589145600,

%T 177843714048000,3201186852864000,60822550204416000,

%U 1216451004088320000,12926008369442488320000,310224200866619719680000,4420880996869850977271808000000

%N Numbers of the form (n!*(n+1))/2 with n or (n+1) prime.

%Y Cf. A001710.

%K nonn

%O 1,2

%A _Giovanni Teofilatto_, May 03 2010

%E Corrected (1 inserted and a duplicate replaced) by _R. J. Mathar_, Jun 28 2010