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Rearrangement of natural numbers so that the product of n terms starting from a(n) is a square.
1

%I #4 Dec 05 2013 19:55:46

%S 1,2,8,3,6,4,18,5,15,7,42,9,16,10,20,11,55,12,45,13,91,14,27,17,68,19,

%T 76,21,210,22,110,23,253,24,330,25,48,26,130,28,364,29,2639,30,105,31,

%U 93,32,34,33,561,35,665,36,171,37,777,38,1995,39,858,40,44,41,943,43

%N Rearrangement of natural numbers so that the product of n terms starting from a(n) is a square.

%Y Cf. A076124.

%K nonn

%O 1,2

%A _Amarnath Murthy_, Oct 14 2002

%E More terms from _David Wasserman_, Apr 02 2005