%I #11 Sep 08 2022 08:45:59

%S 1,2,7,44,401,4682,66431,1111112,21435889,469070942,11488207655,

%T 311505013052,9267595563617,300239975158034,10523614159962559,

%U 396861212733968144,16024522975978953761,689852631578947368422,31544039619835776489479

%N a(n) = T(n,n), array T given by A047848.

%C T(k, n) = ((k+3)^n+k+1)/(k+2).

%H Vincenzo Librandi, <a href="/A196793/b196793.txt">Table of n, a(n) for n = 0..300</a>

%F a(n) = ((n+3)^n+n+1)/(n+2).

%p A196793:=n->((n+3)^n+n+1)/(n+2); seq(A196793(k), k=0..50); # _Wesley Ivan Hurt_, Nov 08 2013

%t Table[((n+3)^n+n+1)/(n+2), {n,0,50}] (* _Wesley Ivan Hurt_, Nov 08 2013 *)

%o (Magma) [((n+3)^n+n+1)/(n+2): n in [0..20]]

%Y Cf. A047848, A047849, A047850, A047851, A047852, A047853, A047854, A047855, A047856

%K nonn

%O 0,2

%A _Vincenzo Librandi_, Oct 11 2011