OFFSET
1,2
EXAMPLE
1;
18,1;
630,54,1;
32760,3492,108,1;
2260440,277200,11160,180,1;
194397840,26376840,1259280,27180,270,1;
20022977520,2937589200,158601240,4140360,56070,378,1;
2402757302400,375471270720,22286940480,667865520,11093040,103320,504,1
MAPLE
b[0]:=f(x):
for j from 1 to 10 do
b[j]:=simplify(x^18*diff(b[j-1], x$1);
end do;
CROSSREFS
KEYWORD
AUTHOR
Udita Katugampola, Mar 23 2013
STATUS
approved