login

Year-end appeal: Please make a donation to the OEIS Foundation to support ongoing development and maintenance of the OEIS. We are now in our 61st year, we have over 378,000 sequences, and we’ve reached 11,000 citations (which often say “discovered thanks to the OEIS”).

A126015
Lucas numbers divided by their primitive part.
3
1, 1, 1, 1, 1, 3, 1, 1, 4, 3, 1, 7, 1, 3, 44, 1, 1, 18, 1, 7, 116, 3, 1, 47, 11, 3, 76, 7, 1, 738, 1, 1, 796, 3, 319, 322, 1, 3, 2084, 47, 1, 5058, 1, 7, 25916, 3, 1, 2207, 29, 123, 14284, 7, 1, 5778, 2189, 47, 37396, 3, 1, 695842, 1, 3, 465044, 1, 5731, 237618, 1, 7, 256316
OFFSET
1,6
COMMENTS
Note that a(n)=1 for prime n and for n=2^k for k=0,1,2,...
FORMULA
a(n)=L(n)/A061447(n)
CROSSREFS
Cf. A000032 (Lucas numbers), A105602 (Fibonacci numbers divided by their primitive part).
Sequence in context: A342805 A363901 A049999 * A247169 A144336 A036040
KEYWORD
nonn
AUTHOR
T. D. Noe, Dec 16 2006
STATUS
approved