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a(1)= 9, a(n) =smallest square obtained by prefixing a multiple of n to a(n-1).
2

%I #4 Dec 05 2013 19:56:32

%S 9,49,1849,39601849,3433965039601849,8431749543719703433965039601849,

%T 21630328864165721709884727523448431749543719703433965039601849,

%U 200826681694245319603106687572622863651082664493457603878954421630328864165721709884727523448431749543719703433965039601849

%N a(1)= 9, a(n) =smallest square obtained by prefixing a multiple of n to a(n-1).

%e a(2) = 49, a(3) = 1849 = 43^2 is obtained by prefixing 18 =3*6, to 49.

%Y Cf. A088063, A088065.

%K base,nonn

%O 1,1

%A _Amarnath Murthy_, Sep 21 2003

%E More terms from _David Wasserman_, Jul 01 2005