|
|
A032142
|
|
"CFK" (necklace, size, unlabeled) transform of 1,3,5,7...
|
|
1
|
|
|
1, 1, 3, 8, 12, 31, 71, 128, 230, 555, 1437, 2248, 4646, 8137, 18279, 49590, 76264, 144351, 264615, 474526, 953766, 2712603, 3931785, 7491022, 12745506, 23133569, 38434487, 76679812, 208933080, 301358215, 553702323
(list;
graph;
refs;
listen;
history;
text;
internal format)
|
|
|
OFFSET
|
0,3
|
|
LINKS
|
|
|
PROG
|
(PARI) seq(n)={apply(p->subst(serlaplace(p/y), y, 1), Vec(y-1+prod(k=1, n, 1 + (2*k-1)*x^k*y + O(x*x^n))))} \\ Andrew Howroyd, Jun 21 2018
|
|
CROSSREFS
|
|
|
KEYWORD
|
nonn
|
|
AUTHOR
|
|
|
EXTENSIONS
|
|
|
STATUS
|
approved
|
|
|
|