Logo

Greetings from The On-Line Encyclopedia of Integer Sequences!

Hints

Search: id:A053717
Displaying 1-1 of 1 results found. page 1
     Format: long | short | internal | text      Sort: relevance | references | number      Highlight: on | off
A053717 a(n) = n^7 + n^6 + n^5 + n^4 + n^3 + n^2 + n + 1 = (n^8-1)/(n-1). +0
5
8, 255, 3280, 21845, 97656, 335923, 960800, 2396745, 5380840, 11111111, 21435888, 39089245, 67977560, 113522235, 183063616, 286331153, 435984840, 648232975, 943531280, 1347368421, 1891142968, 2613136835, 3559590240 (list; graph; listen)
OFFSET

1,1

COMMENT

a(n) = 11111111 in base n.

EXAMPLE

a(3)=3280 because 11111111 base 3 =2187+729+243+81+27+9+3+1=3280

CROSSREFS

Sequence in context: A035036 A138323 A162132 this_sequence A034674 A130034 A128787

Adjacent sequences: A053714 A053715 A053716 this_sequence A053718 A053719 A053720

KEYWORD

base,nonn

AUTHOR

Henry Bottomley (se16(AT)btinternet.com), Mar 23 2000

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 23 17:09 EST 2009. Contains 167438 sequences.


AT&T Labs Research