1,3

Row sums = A069153: (1, 3, 7, 10, 19, 21, 35, 39,...).

Triangle, antidiagonals of an array formed by A051731 * A126988(transform).

First few rows of the array are:

1, 2, 3, 4, 5, 6, 7,...

1, 3, 3, 6, 5, 9, 7,...

1, 2, 4, 4, 5, 8, 7,...

1, 3, 3, 7, 5, 9, 7,...

1, 2, 3, 4, 6, 6, 7,...

...

First few rows of the triangle are:

1;

1, 2;

1, 3, 3;

1, 2, 3, 4;

1, 3, 4, 6, 5;

1, 2, 3, 4, 5, 6;

1, 2, 3, 7, 5, 9, 7;

1, 2, 4, 4, 5, 8, 7, 8;

...

Cf. A051731, A126988, A069153.

Sequence in context: A119803 A110569 A140815 this_sequence A126572 A162910 A098975

Adjacent sequences: A134837 A134838 A134839 this_sequence A134841 A134842 A134843

nonn,tabl

Gary W. Adamson (qntmpkt(AT)yahoo.com), Nov 12 2007