%I #4 Sep 26 2015 01:12:27
%S 1,2,1,5,1,5,5,11,1,5,5,11,7,15,19,23,1,5,5,11,7,15,19,23,7,15,21,29,
%T 29,49,59,47,1,5,5,11,7,15,19,23,7,15,21,29,29,49,59,47,7,15,21,29,29,
%U 49,61,53,29,51,71,87,107,157,163,95,1,5,5,11,7,15,19,23,7,15,21,29,29,49,59,47
%N First differences of A151735 (starting at A151735(2)).
%e If written as a triangle,
%e 1,
%e 2,
%e 1,5,
%e 1,5,5,11,
%e 1,5,5,11,7,15,19,23,
%e 1,5,5,11,7,15,19,23,7,15,21,29,29,49,59,47,
%e 1,5,5,11,7,15,19,23,7,15,21,29,29,49,59,...
%e the rows approach A151728.
%Y Cf. A151735, A151728.
%K nonn,tabf
%O 0,2
%A _N. J. A. Sloane_, Jun 15 2009, Jun 16 2009