OFFSET
1,2
COMMENTS
Conjecture: This sequence is finite.
Contribution from Artur Jasinski, Dec 08 2008: (Start)
The EKG sequence A064413 has 3 critical lines.
Numbers which belong to the critical lines:
(1) A064413(k) = k see this sequence,
(1/2) 2*A064413(k) = k has only 2 numbers {10, 14}.
Because points are concentrated on the plot of EKG sequence near these 3 critical lines, the number of points belonging to critical lines is surprisingly low.
Is this sequence complete? (End)
Also fixed points of A247379. - Reinhard Zumkeller, Sep 15 2014
a(6) > 10^5, if it exists. - Amiram Eldar, Oct 23 2024
PROG
(Haskell)
a152458 n = a152458_list !! (n-1)
a152458_list = [x | x <- [1..], a064413 x == x]
-- Reinhard Zumkeller, Sep 15 2014
CROSSREFS
KEYWORD
nonn,more,changed
AUTHOR
Artur Jasinski, Dec 05 2008
STATUS
approved