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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
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
Cf. A272916.
Sequence in context: A095056 A337557 A186333 * A239627 A101933 A117127
KEYWORD
nonn,easy
AUTHOR
Clark Kimberling, May 10 2016
STATUS
approved