Longest Lucas seq. from start to "n"
Eric Angelini
Eric.Angelini at kntv.be
Thu Oct 18 11:58:22 CEST 2007
Hello SeqFans,
I guess this is (very) old hat -- sorry.
I want to insert "17" (for instance) as later as
possible in a Lucas seq. I found by hand that the
seq 4 1 5 6 11 [17] 28... is the answer (5 terms
before "17"; the seq 7 1 8 9 [17] 26... has 4)
What is the general method to find those? There
must be a seq in the OEIS linking n to the length
of its "latest entry" in a Lucas sequence -- but
I cannot find it.
What would be the longest such chain including 2007?
Best,
É.
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