|
|
A272917
|
|
Difference sequence of A272916.
|
|
2
|
|
|
1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 2, 1, 2, 3, 3, 1, 1, 2, 1, 4, 1, 5, 1, 2, 2, 3, 2, 5, 1, 8, 1, 1, 3, 4, 4, 1, 10, 2, 13, 2, 1, 5, 6, 5, 2, 3, 15, 3, 21, 3, 1, 1, 8, 10, 10, 1, 4, 25, 5, 34, 5, 1, 2, 13, 16, 15, 3, 2, 5, 40, 8, 55, 8, 1, 1, 3, 21, 26, 25
(list;
graph;
refs;
listen;
history;
text;
internal format)
|
|
|
OFFSET
|
1,13
|
|
COMMENTS
|
Conjecture: every term belongs to A272916.
|
|
LINKS
|
|
|
MATHEMATICA
|
z = 400; u2 = Sort[Flatten[Table[Fibonacci[i + 1]*Fibonacci[j + 1], {i, 1, z}, {j, i, z}]]];
v2 = Sort[Flatten[Table[LucasL[i]*LucasL[j], {i, 1, z}, {j, i, z}]]];
u = Take[Union[u2, v2], 200] (* A272916 *)
d = Take[Differences[u], 200] (* A272917 *)
|
|
CROSSREFS
|
|
|
KEYWORD
|
nonn,easy
|
|
AUTHOR
|
|
|
STATUS
|
approved
|
|
|
|