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Main diagonal of number array A083064.
7

%I #7 Jun 21 2013 11:36:52

%S 1,2,11,94,1037,14006,224695,4185098,88888889,2122152922,56288512931,

%T 1642813694534,52332842192581,1807181134905134,67253754435399407,

%U 2683521610790452306,114296029267382825201,5175920921241202064498

%N Main diagonal of number array A083064.

%H Vincenzo Librandi, <a href="/A083069/b083069.txt">Table of n, a(n) for n = 0..100</a>

%F a(n) = (n*(n+2)^n+1)/(n+1).

%t Table[(n (n + 2)^n + 1) / (n + 1), {n, 0, 20}] (* _Vincenzo Librandi_, Jun 21 2013 *)

%Y Cf. A083070, A083071.

%K easy,nonn

%O 0,2

%A _Paul Barry_, Apr 21 2003