OFFSET
1,1
COMMENTS
Note that for each triangular array T(row+1,col) = 2 * T(row,col) +1 and that the change from T(row,col+1) to T(row,col) can be readily discerned. In the first array that pattern is 1 2 4 8 ...while in the second, it becomes 3 6 12 24 48 ... and in general, the pattern for the k-th array will begin with 2k-1.
EXAMPLE
The first array begins
1
3 2
7 5 4
15 11 9 8
31 23 19 17 16
so a(1) begins with six. In general each triangular array will begin with
the next term from A079946.
CROSSREFS
KEYWORD
AUTHOR
Alford Arnold, Jan 26 2004
STATUS
approved