A114020 - OEIS

%I #4 Mar 03 2023 23:11:32

%S 0,1,2,3,8,40326

%N a(n) = a(n-1)! + a(n-2)! with a(0) = 0, a(1) = 1.

%C a(6) is too large to include.

%C Essentially a duplicate of A005604.

%e a(5) = a(4)! + a(3)! = 8! + 3! = 40320 + 6 = 40326.

%Y Cf. A000045, A005604.

%K nonn

%O 0,3

%A _Parthasarathy Nambi_, Jan 31 2006