%I #3 Mar 03 2013 13:10:40

%S 1,2,1,4,3,4,7,6,10,9,12,11,20,24,25,19,18,34,45,60,49,30,29,56,78,

%T 115,126,121,45,44,86,123,190,231,286,225,67,66,130,189,300,385,528,

%U 555,484,97,96,190,279,450,595,858,1005,1144,900

%N Triangle read by rows, A140207^2.

%C Left border of the triangle = A000070; right border = A001255.

%F A140207^2 as an infinite lower triangular matrix.

%e First few rows of the triangle are:

%e 1;

%e 2, 1;

%e 4, 3, 4;

%e 7, 6, 10, 9;

%e 12, 11, 20, 24, 25;

%e 19, 18, 34, 45, 60, 49;

%e 30, 29, 56, 78, 115, 126, 121;

%e ...

%Y Cf. A001255, A141211 (row sums), A140207, A000070.

%K nonn,tabl

%O 0,2

%A _Gary W. Adamson_ & _Roger L. Bagula_, Jun 13 2008