Logo

Greetings from The On-Line Encyclopedia of Integer Sequences!

Hints

Search: id:A018245
Displaying 1-1 of 1 results found. page 1
     Format: long | short | internal | text      Sort: relevance | references | number      Highlight: on | off
A018245 A self-generating sequence: there are a(n) (k+1)'s between successive k's, where k=4. +0
1
4, 5, 5, 5, 5, 4, 5, 5, 5, 5, 5, 4, 5, 5, 5, 5, 5, 4, 5, 5, 5, 5, 5, 4, 5, 5, 5, 5, 5, 4, 5, 5, 5, 5, 4, 5, 5, 5, 5, 5, 4, 5, 5, 5, 5, 5, 4, 5, 5, 5, 5, 5, 4, 5, 5, 5, 5, 5, 4, 5, 5, 5, 5, 5, 4, 5, 5, 5, 5, 4, 5, 5, 5, 5, 5, 4, 5, 5, 5, 5 (list; graph; listen)
OFFSET

1,1

MAPLE

f := proc(n, k) floor(n*(k+sqrt(k^2+4*k))/2)-floor((n-1)*(k+sqrt(k^2+4*k))/2); end; (with k=4)

CROSSREFS

Cf. A001468, A007538.

Sequence in context: A106626 A094848 A117768 this_sequence A103671 A144192 A029909

Adjacent sequences: A018242 A018243 A018244 this_sequence A018246 A018247 A018248

KEYWORD

nonn

AUTHOR

Jonas Wallgren (jwc(AT)ida.liu.se)

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