OFFSET
1,2
COMMENTS
Also A007318 * A127899 (unsigned) as a product of two infinite lower triangular matrices. - Gary W. Adamson, Feb 19 2007
EXAMPLE
First few rows of the triangle are
1;
3, 2;
5, 7, 3;
7, 15, 13, 4;
9, 26, 34, 21, 5;
11, 40, 70, 65, 31, 6;
13, 57, 125, 155, 111, 43, 7;
...
MAPLE
T:=(n, k)->k*binomial(n, k)+binomial(n-1, k): for n from 1 to 12 do seq(T(n, k), k=1..n) od; # yields sequence in triangular form
CROSSREFS
KEYWORD
nonn,tabl
AUTHOR
Gary W. Adamson, Nov 15 2006
EXTENSIONS
Edited by N. J. A. Sloane, Nov 29 2006
STATUS
approved