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%I #2 Mar 31 2012 10:28:53
%S 2,3,2,5,5,3,7,10,2,5,11,17,6,7,7,13,14,23,13,14,11,17,3,37,6,3,5,13,
%T 19,10,10,43,3,2,6,17,23,29,10,53,46,5,2,23,19,29,26,39,21,33,51,7,5,
%U 42,23,31,55,65,30,6,42,58,6,47,65,29,37,86,30,95,6,6,10,2,53,14,94,31
%N Triangle read by rows: prime numbers p(n) along left edge (n, 1) and p(n - 1) along right edge (n, n), with (n, k) = rad((n - 1, k - 1) + (n - 1, k)) for 1 < k < n when n > 2.
%C Large clusters of twos occur periodically along interior diagonals. The final two in the terms given begins one such cluster.
%Y Cf. A000040, A007947
%K easy,nonn,tabl
%O 1,1
%A _Reikku Kulon_, Sep 17 2008
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