1,6

Row sums = A003238(n+1)

Triangle read by rows, A051731 * (A003238 * 0^(n-k)). A051731 = the inverse

Mobius transform.

First few rows of the triangle =

1;

1, 1;

1, 0, 2;

1, 1, 0, 3;

1, 0, 0, 0, 5;

1, 1, 2, 0, 0, 6;

1, 0, 0, 0, 0, 0, 10;

1, 1, 0, 3, 0, 0, 0, 11;

1, 0, 2, 0, 0, 0, 0, 0, 16;

1, 1, 0, 0, 5, 0, 0, 0, 0, 19;

1, 0, 0, 0, 0, 0, 0, 0, 0, 0, 26;

1, 1, 2, 3, 0, 6, 0, 0, 0, 0, 0, 27;

...

Row 4 = (1, 1, 0, 3) = termwise products of (1, 1, 0, 1) and (1, 1, 2, 3)

A051731, A003238

Sequence in context: A028422 A064577 A113949 this_sequence A143810 A128589 A130162

Adjacent sequences: A152431 A152432 A152433 this_sequence A152435 A152436 A152437

nonn,tabl

Gary W. Adamson (qntmpkt(AT)yahoo.com), Dec 04 2008