A061291 - OEIS

A061291

a(1) = 1; a(n+1) = a(1) + a(2)*(a(2) + a(3)*(a(3) +...+a(n-1)*(a(n-1) + a(n))...)).

%I #6 Apr 09 2014 10:15:00

%S 1,1,2,4,14,150,18406,311742406,96402927697811206,

%T 9292975819514867485089851568784006

%N a(1) = 1; a(n+1) = a(1) + a(2)*(a(2) + a(3)*(a(3) +...+a(n-1)*(a(n-1) + a(n))...)).

%K easy,nonn

%O 1,3

%A _Leroy Quet_, Jun 04 2001