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A177771(n+3)/6! .
0

%I #3 Mar 30 2012 18:40:08

%S 1,5040,665280,29059430400,8892185702400,1561112121913344000,

%T 423456034182935917363200000,368406749739154248105984000000,

%U 516657398319307246483332566876160000000

%N A177771(n+3)/6! .

%F a(n) = sqrt( A177926(n+3) )/720.

%Y Cf. A178056.

%K nonn

%O 1,2

%A _Giovanni Teofilatto_, Aug 31 2010

%E Parentheses and indices corrected - _R. J. Mathar_, Sep 03 2010