login
This site is supported by donations to The OEIS Foundation.
Logo

Hints
(Greetings from The On-Line Encyclopedia of Integer Sequences!)
A004066 Number of simple regular trivalent bicolored graphs with 2n nodes. 0
1, 1, 2, 6, 14, 41, 157, 725, 4196, 29817, 246646, 2297088 (list; graph; refs; listen; history; internal format)
OFFSET

3,3

CROSSREFS

Cf. A008325.

Sequence in context: A151538 A009423 A008325 * A123383 A151414 A151386

Adjacent sequences:  A004063 A004064 A004065 * A004067 A004068 A004069

KEYWORD

nonn

AUTHOR

Gunnar Brinkmann, Brendan D. McKay (bdm(AT)cs.anu.edu.au) and Eric Rogoyski

Lookup | Welcome | Wiki | Register | Music | Plot 2 | Demos | Index | Browse | More | WebCam
Contribute new seq. or comment | Format | Transforms | Puzzles | Hot | Classics
Recent Additions | More pages | Superseeker | Maintained by The OEIS Foundation Inc.

Content is available under The OEIS End-User License Agreement .

Last modified February 14 19:37 EST 2012. Contains 205663 sequences.