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First column of array in A081998.
4

%I #10 Aug 31 2018 16:49:54

%S 1,3,4,17,19,49,53,103,107,179,181,293,295,421,431,559,563,709,713,

%T 911,913,1151,1153,1423,1427,1681,1693,2063,2069,2383,2389,2789,2791,

%U 3203,3209,3673,3677,4139,4153,4679,4691,5273,5279,5821,5827,6439,6449

%N First column of array in A081998.

%H Charlie Neder, <a href="/A082000/b082000.txt">Table of n, a(n) for n = 0..140</a>

%Y Cf. A081998, A081999, A082001.

%K nonn

%O 0,2

%A _Amarnath Murthy_, Apr 05 2003

%E a(4)-a(46) from _Charlie Neder_, Aug 31 2018