Logo

Greetings from The On-Line Encyclopedia of Integer Sequences!

Hints

Search: id:A129874
Displaying 1-1 of 1 results found. page 1
     Format: long | short | internal | text      Sort: relevance | references | number      Highlight: on | off
A129874 Sequence h_n arising in enumeration of arrays of directed blocks (see Quaintance reference for precise definition). +0
3
2, 1, 4, 4, 16, 19, 76, 98 (list; graph; listen)
OFFSET

1,1

REFERENCES

Jocelyn Quaintance, Combinatoric Enumeration of Two-Dimensional Proper Arrays, Discrete Math., 307 (2007), 1844-1864.

FORMULA

See Quaintance reference for generating functions that produce A129872-A129886.

CROSSREFS

Sequence in context: A034409 A048049 A057772 this_sequence A021983 A038730 A050166

Adjacent sequences: A129871 A129872 A129873 this_sequence A129875 A129876 A129877

KEYWORD

nonn

AUTHOR

njas, May 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 September 5 19:27 EDT 2008. Contains 143485 sequences.


AT&T Labs Research