OFFSET
0,5
COMMENTS
Row sums are 1, 2, 4, 8, 16, 22, 64, 44, 160, 224, 474,...
EXAMPLE
1;
1, 1;
1, 2, 1;
1, 3, 3, 1;
1, 4, 6, 4, 1;
1, 5, 5, 5, 5, 1;
1, 6, 15, 20, 15, 6, 1;
1, 7, 7, 7, 7, 7, 7, 1;
1, 8, 28, 8, 70, 8, 28, 8, 1;
1, 9, 9, 84, 9, 9, 84, 9, 9, 1;
1, 10, 45, 10, 45, 252, 45, 10, 45, 10, 1;
MATHEMATICA
a = Table[Table[Binomial[n, GCD[n, m]], {m, 0, n}], {n, 0, 10}]; Flatten[a]
CROSSREFS
KEYWORD
AUTHOR
Roger L. Bagula and Gary W. Adamson, Jul 16 2008
EXTENSIONS
Offset corrected by R. J. Mathar, Nov 07 2011
STATUS
approved