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reviewed
approved
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Revision History for A130242
(Bold, blue-underlined text is an addition; faded, red-underlined text is aShowing entries 1-10 | older changes
Minimal index k of a Lucas number such that Lucas(k)>=n (the 'upper' Lucas (A000032) Inverse).
(history; published version)
(history; published version)
STATUS
proposed
reviewed
STATUS
editing
proposed
PROG
(Python)
from itertools import islice, count
def A130242_gen(): # generator of terms
yield from (0, 0, 0, 2)
a, b = 3, 4
for i in count(3):
yield from (i, )*(b-a)
a, b = b, a+b
A130242_list = list(islice(A130242_gen(), 40)) # Chai Wah Wu, Jun 08 2022
STATUS
approved
editing
STATUS
proposed
approved
STATUS
editing
proposed
LINKS
G. C. Greubel, <a href="/A130242/b130242.txt">Table of n, a(n) for n = 0..5000</a>
MATHEMATICA
Join[{0, 0, 0}, Table[Ceiling[Log[GoldenRatio, n + 1/2]], {n, 2, 50}]] (* G. C. Greubel, Dec 24 2017 *)
STATUS
approved
editing
STATUS
reviewed
approved
STATUS
proposed
reviewed
STATUS
editing
proposed