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%I #10 Apr 29 2015 16:18:44
%S 0,2,59,2519,19958399,3113510399,177843714047999,60822550204415999,
%T 12926008369442488319999,4420880996869850977271807999999,
%U 4111419327088961408862781439999999,6881876545613172523157989790790451199999999,16726263306581903554085031026720375832575999999999,30207631531686917818677566034256998753632255999999999,129311620755584090321482177576805989984598816194559999999999,2137441642030012782149006876694699824845171894183406862335999999999999
%N a(n) = (prime(n)!-2)/2.
%H Alois P. Heinz, <a href="/A139190/b139190.txt">Table of n, a(n) for n = 1..85</a>
%F a(n) = (A139189(n)-1)/2. - _R. J. Mathar_, May 25 2008
%t Table[(Prime[n]! - 2)/2, {n, 1, 20}]
%o (PARI) a(n) = (prime(n)!-2)/2 \\ _Charles R Greathouse IV_, Apr 29 2015
%Y Cf. A139189, A139190, A139191, A139192, A139193, A139194, A139195, A139196, A139197, A139198.
%K nonn
%O 1,2
%A _Artur Jasinski_, Apr 11 2008
%E More terms from _R. J. Mathar_, May 25 2008
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