OFFSET
0,2
COMMENTS
Generally, A255935(n) multiplied by triangle T(n,k) for s(k), k=0 to n-1 yields an autosequence of the first kind (a sequence whose main diagonal is 0's).
0 = 0/1
1/6, 0 = 1/6
1/6, 0, 0 = 1/6
1/6, 0, -1/10, 0 = 1/15
1/6, 0, -1/5, 0, 0 =-1/30
... .
a(n) are the row sums denominators.
Hence the difference table
0, 1/6, 1/6, 1/15, -1/30, -1/21, 1/42, ...
1/6, 0, -1/10, -1/10, -1/70, 1/14, ...
-1/6, -1/10, 0, 3/35, 3/35, ...
1/15, 1/10, 3/35, 0, ...
1/30, -1/70, -3/35, ...
-1/21, -1/14, ...
-1/42, ...
... .
CROSSREFS
KEYWORD
nonn
AUTHOR
Paul Curtz, Apr 21 2015
STATUS
approved