Logo

Greetings from The On-Line Encyclopedia of Integer Sequences!

Hints

Search: id:A103471
Displaying 1-1 of 1 results found. page 1
     Format: long | short | internal | text      Sort: relevance | references | number      Highlight: on | off
A103471 Number of polyominoes without holes consisting of 5 regular unit n-gons. +0
13
4, 12, 25, 22, 25, 50, 82, 127, 186, 168, 187, 263, 362, 472, 614, 566, 615, 776, 972, 1179, 1437, 1347, 1439, 1711, 2045, 2376, 2786, 2641, 2790, 3204, 3707, 4193, 4790, 4575, 4796, 5380, 6089, 6760, 7578, 7282, 7584, 8373, 9321, 10207, 11282, 10890 (list; graph; listen)
OFFSET

3,1

LINKS

S. Kurz, k-polyominoes.

EXAMPLE

a(3)=4 because there are 4 polyiamonds consisting of 5 triangles and a(4)=12 because there are 12 polyominoes consisting of 5 squares.

CROSSREFS

Cf. A103469, A103470, A103472, A103473.

Sequence in context: A073841 A140813 A032339 this_sequence A114979 A008073 A008097

Adjacent sequences: A103468 A103469 A103470 this_sequence A103472 A103473 A103474

KEYWORD

nonn

AUTHOR

Sascha Kurz (sascha.kurz(AT)uni-bayreuth.de), Feb 07 2005

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 8 08:31 EST 2009. Contains 170430 sequences.


AT&T Labs Research