OFFSET
0,2
COMMENTS
LINKS
Clark Kimberling, Rows 0..100, flattened.
EXAMPLE
f(0,x) = 1/1, so that p(0,x) = 1.
f(1,x) = (2 + x)/1, so that p(1,x) = 2 + x.
f(2,x) = (3 + 2 x + x^2)/(2 + x), so that p(2,x) = 3 + 2 x + x^2.
First 6 rows of the triangle of coefficients:
1
2 1
3 2 1
8 7 2 1
15 18 12 2 1
48 57 30 18 2 1
MATHEMATICA
PROG
(PARI) rown(n) = if (n==0, 1, x + (n+1)/rown(n-1));
tabl(nn) = for (n=0, nn, print(Vecrev(numerator(rown(n))))); \\ Michel Marcus, Oct 25 2014
CROSSREFS
KEYWORD
AUTHOR
Clark Kimberling, Oct 23 2014
STATUS
approved