login
The OEIS is supported by the many generous donors to the OEIS Foundation.

 

Logo
Hints
(Greetings from The On-Line Encyclopedia of Integer Sequences!)
A064928 Inverse of A034175 considered as a permutation of the nonnegative integers (which it is conjectured to be). 3

%I #22 Mar 03 2019 01:57:31

%S 0,1,11,2,7,8,3,12,40,13,4,9,24,25,10,5,14,41,19,42,15,6,35,26,31,32,

%T 27,36,47,16,43,20,102,21,44,17,48,37,28,33,58,57,34,29,38,49,18,45,

%U 22,103,79,104,23,46,75,50,39,30,63,116,59,60,115,64,55,70,51,74,109

%N Inverse of A034175 considered as a permutation of the nonnegative integers (which it is conjectured to be).

%H Robert G. Wilson v, <a href="/A064928/b064928.txt">Table of n, a(n) for n = 0..10000</a> (terms 0..1700 from Zak Seidov, terms 1701..8691 from Peter Pein)

%H <a href="/index/Per#IntegerPermutation">Index entries for sequences that are permutations of the natural numbers</a>

%t a[0]=b[0]=0; lst={0}; For[n=1, n<250, n++, For[s=Ceiling[Sqrt[a[n-1]]], MemberQ[lst, s^2-a[n-1]], s++, Null]; b[a[n]=s^2-a[n-1]]=n; AppendTo[lst, a[n]]]; Table[b[n], {n, 0, 100}]

%Y Cf. A034175.

%K nonn,easy

%O 0,3

%A _Dean Hickerson_, Oct 14 2001

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

License Agreements, Terms of Use, Privacy Policy. .

Last modified April 24 00:30 EDT 2024. Contains 371917 sequences. (Running on oeis4.)