Logo

Greetings from The On-Line Encyclopedia of Integer Sequences!

Hints

Search: id:A067405
Displaying 1-1 of 1 results found. page 1
     Format: long | short | internal | text      Sort: relevance | references | number      Highlight: on | off
A067405 Fifth column of triangle A067402. +0
3
1, 9, 225, 5625, 140625, 3515625, 87890625, 2197265625, 54931640625, 1373291015625, 34332275390625, 858306884765625, 21457672119140625, 536441802978515625, 13411045074462890625, 335276126861572265625 (list; graph; listen)
OFFSET

0,2

FORMULA

a(n)= A067402(n+4, 4). a(n)= 9*25^(n-1), n>=1, a(0)=1.

G.f. (1-16*x)/(1-25*x).

CROSSREFS

Cf. A067404 (fourth column), A067406 (sixth column), A009969 (powers of 25).

Sequence in context: A074190 A069075 A012054 this_sequence A063386 A063392 A012831

Adjacent sequences: A067402 A067403 A067404 this_sequence A067406 A067407 A067408

KEYWORD

nonn,easy

AUTHOR

Wolfdieter Lang (wolfdieter.lang(AT)physik.uni-karlsruhe.de), Jan 25 2002

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 25 20:09 EST 2009. Contains 167514 sequences.


AT&T Labs Research