login
a(n) = (n!)^2 + n! + n.
1

%I #11 Feb 03 2020 15:27:08

%S 2,3,8,45,604,14525,519126,25406647,1625742728,131682257289,

%T 13168193068810,1593350962156811,229442533281561612,

%U 38775788049859660813,7600054456639175731214,1710012252725507098368015

%N a(n) = (n!)^2 + n! + n.

%H Harry J. Smith, <a href="/A066084/b066084.txt">Table of n, a(n) for n = 0..100</a>

%t Table[ (n!)^2 + n! + n, {n, 0, 16} ]

%o (PARI) { for (n=0, 100, a=(n!)^2 + n! + n; write("b066084.txt", n, " ", a) ) } \\ _Harry J. Smith_, Nov 11 2009

%Y Cf. A005095.

%K easy,nonn

%O 0,1

%A _George E. Antoniou_, Dec 03 2001

%E More terms from _Robert G. Wilson v_, Dec 04 2001