login
This site is supported by donations to The OEIS Foundation.

 

Logo


Hints
(Greetings from The On-Line Encyclopedia of Integer Sequences!)
A247468 Smallest number m such that A247462(m) = n. 3

%I

%S 1,5,164,501,7364,29121,515504,2445693

%N Smallest number m such that A247462(m) = n.

%C A247462(a(n)) = n and A247462(m) < n for m < a(n).

%e . n | a(n) | A058977 trajectory

%e . ---+---------+---------------------------------------------------------

%e . 2 | 5 | 1/a(2)-5/2-7

%e . 3 | 164 | 1/a(3)-19/3-13/2-4

%e . 4 | 501 | 1/a(4)-253/2-25/3-9/2-11

%e . 5 | 7364 | 1/a(5)-499/3-253/2-25/3-9/2-11

%e . 6 | 29121 | 1/a(6)-14563/2-979/3-493/2-19/3-13/2-4

%e . 7 | 515504 | 1/a(6)-34375/3-17191/2-535/3-271/2-23/3-15/2-17

%e . 8 | 2445693 | 1/a(8)-1222849/2-58241/3-14563/2-979/3-493/2-19/3-13/2-4

%o (Haskell)

%o import Data.List (elemIndex); import Data.Maybe (fromJust)

%o a247468 = (+ 1) . fromJust . (`elemIndex` a247462_list)

%Y Cf. A247462, A058977.

%K nonn,more

%O 1,2

%A _Reinhard Zumkeller_, Sep 17 2014

Lookup | Welcome | Wiki | Register | Music | Plot 2 | Demos | Index | Browse | More | WebCam
Contribute new seq. or comment | Format | Style Sheet | Transforms | Superseeker | Recent
The OEIS Community | Maintained by The OEIS Foundation Inc.

License Agreements, Terms of Use, Privacy Policy. .

Last modified October 18 20:08 EDT 2019. Contains 328197 sequences. (Running on oeis4.)