OFFSET
0,4
COMMENTS
Row n has length 2n+2.
FORMULA
T(n,0) = 1. For 0<k<=n+1, T(n,2k-1) = n+2-k, T(n,2k) = 2n+1+k. - Franklin T. Adams-Watters, Apr 26 2006
EXAMPLE
Triangle begins:
Row 0: 1 1
Row 1: 1 2 4 1
Row 2: 1 3 6 2 7 1
Row 3: 1 4 8 3 9 2 10 1
Row 4: 1 5 10 4 11 3 12 2 13 1
...
CROSSREFS
KEYWORD
nonn,tabf
AUTHOR
N. J. A. Sloane, Apr 21 2006
STATUS
approved