Logo

Greetings from The On-Line Encyclopedia of Integer Sequences!

Hints

Search: id:A093849
Displaying 1-1 of 1 results found. page 1
     Format: long | short | internal | text      Sort: relevance | references | number      Highlight: on | off
A093849 Row sums of triangle A093846. +0
2
9, 153, 2097, 26496, 319995, 3749994, 42999985, 484999992, 5399999991, 59499999990, 649999999935, 7049999999988, 75999999999924, 814999999999941, 8699999999999985, 92499999999999984, 979999999999999902 (list; graph; listen)
OFFSET

1,1

FORMULA

a(n) = n*[10^(n-1)-1+(n+1)*floor(9*10^(n-1)/n)/2].

CROSSREFS

Cf. A093846.

Sequence in context: A089916 A143000 A143905 this_sequence A165232 A012017 A130980

Adjacent sequences: A093846 A093847 A093848 this_sequence A093850 A093851 A093852

KEYWORD

base,easy,nonn

AUTHOR

Amarnath Murthy (amarnath_murthy(AT)yahoo.com), Apr 18 2004

EXTENSIONS

Edited and extended by David Wasserman (dwasserm(AT)earthlink.net), Mar 26 2007

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 December 20 00:58 EST 2009. Contains 171054 sequences.


AT&T Labs Research