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

 

Logo


Hints
(Greetings from The On-Line Encyclopedia of Integer Sequences!)
A226794 Numbers of the form (5^j + 9^k)/2, for j and k >= 0. 1
1, 3, 5, 7, 13, 17, 41, 43, 53, 63, 67, 103, 313, 317, 353, 365, 367, 377, 427, 677, 1563, 1567, 1603, 1927, 3281, 3283, 3293, 3343, 3593, 4843, 7813, 7817, 7853, 8177, 11093, 29525, 29527, 29537, 29587, 29837, 31087, 37337, 39063, 39067, 39103 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,2

LINKS

Table of n, a(n) for n=1..45.

MATHEMATICA

a = 5; b = 9; mx = 80000; Union[Flatten[Table[a^n + b^m, {m, 0, Log[b, mx]}, {n, 0, Log[a, mx - b^m]}]]]/2

CROSSREFS

Cf. A226829 (5^j + 9^k).

Sequence in context: A066464 A062324 A194829 * A300748 A173641 A153645

Adjacent sequences:  A226791 A226792 A226793 * A226795 A226796 A226797

KEYWORD

nonn

AUTHOR

T. D. Noe, Jun 19 2013

STATUS

approved

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

License Agreements, Terms of Use, Privacy Policy. .

Last modified October 18 11:56 EDT 2018. Contains 316321 sequences. (Running on oeis4.)