Logo

Greetings from The On-Line Encyclopedia of Integer Sequences!

Hints

Search: id:A123049
Displaying 1-1 of 1 results found. page 1
     Format: long | short | internal | text      Sort: relevance | references | number      Highlight: on | off
A123049 Numbers n such that (n+2) | (2^n+3^n). +0
1
0, 3, 33, 75, 2385, 6345, 6963, 11625, 18555, 57825, 89505, 92475, 265995, 473625, 575265, 1254363, 1720035, 3930705, 4295763, 4638603, 5686875, 6662115, 8731875, 8782515, 13964025, 14951385, 17714475, 18979035, 21868875, 26854155, 45546345 (list; graph; listen)
OFFSET

1,2

COMMENT

All terms are multiples of 3. - Robert G. Wilson v Sep 29 2006

Entries not congruent to 0 (modulo 5): 3, 33, 6963, 1254363, 4295763, 4638603, 50045553, 69151563, 114829611, 121716633, 208974987, 249618633, 292403403, ..., . - Robert G. Wilson v Sep 29 2006

MATHEMATICA

Do[m = n; If[ Mod[ PowerMod[2, n, n + 2] + PowerMod[3, n, n + 2], n + 2] == 0, Print@n], {n, 0, 45546345}] - Robert G. Wilson v Sep 29 2006

CROSSREFS

Cf. A045576.

Sequence in context: A084502 A069165 A139222 this_sequence A153783 A048911 A089015

Adjacent sequences: A123046 A123047 A123048 this_sequence A123050 A123051 A123052

KEYWORD

nonn

AUTHOR

Zak Seidov (zakseidov(AT)yahoo.com), Sep 25 2006

EXTENSIONS

More terms from Robert G. Wilson v Sep 29 2006

page 1

Search completed in 0.002 seconds

Lookup | Welcome | Find friends | Music | Plot 2 | Demos | Index | Browse | More | WebCam
Contribute new seq. or comment | Format | Transforms | Puzzles | Hot | Classics
More pages | Superseeker | Maintained by N. J. A. Sloane (njas@research.att.com)

Last modified November 27 22:38 EST 2009. Contains 167602 sequences.


AT&T Labs Research