login
The OEIS Foundation is supported by donations from users of the OEIS and by a grant from the Simons Foundation.

 

Logo


Hints
(Greetings from The On-Line Encyclopedia of Integer Sequences!)
A049190 Start with 1. Convert to base 2, describe it in base 2, convert to base 10. 4

%I

%S 1,3,5,59,245,2491,235253,127756731,330567489269,258479716298484155,

%T 36823182192123209878050549,25576412117054296344209353299113896379,

%U 10994511204169842163496446583221775727830456269734123253

%N Start with 1. Convert to base 2, describe it in base 2, convert to base 10.

%C a(n) is A001387(n) converted to base 10. - _Nathan Fox_, Mar 07 2018

%e 1 -> One 1 -> 11 -> 3;

%e 3 -> 11 -> Two 1's -> 101 -> 5;

%e 5 -> 101 -> One 1, One 0, One 1 -> 111011 -> 59;

%e etc.

%Y Cf. A005150, A001387.

%K nonn,base

%O 1,2

%A _Olivier GĂ©rard_

%E Definition and Example corrected by _Nathan Fox_, Mar 07 2018

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 August 10 12:39 EDT 2020. Contains 336379 sequences. (Running on oeis4.)