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!)
A226826 Numbers of the form 2^j + 9^k, for j and k >= 0. 1

%I #3 Jun 19 2013 02:28:10

%S 2,3,5,9,10,11,13,17,25,33,41,65,73,82,83,85,89,97,113,129,137,145,

%T 209,257,265,337,513,521,593,730,731,733,737,745,761,793,857,985,1025,

%U 1033,1105,1241,1753,2049,2057,2129,2777,4097,4105,4177,4825,6562,6563

%N Numbers of the form 2^j + 9^k, for j and k >= 0.

%H T. D. Noe, <a href="/A226826/b226826.txt">Table of n, a(n) for n = 1..10000</a>

%t a = 2; b = 9; mx = 7000; Union[Flatten[Table[a^n + b^m, {m, 0, Log[b, mx]}, {n, 0, Log[a, mx - b^m]}]]]

%Y Cf. A004050 (2^j + 3^k), A226806-A226832 (cases to 8^j + 9^k).

%K nonn

%O 1,1

%A _T. D. Noe_, Jun 19 2013

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 27 04:12 EDT 2024. Contains 372009 sequences. (Running on oeis4.)