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

Hints
(Greetings from The On-Line Encyclopedia of Integer Sequences!)
A068245 1/6 the number of colorings of a 4 X 4 rhombic- or staggered- hexagonal array with n colors. 0
1, 7616, 5141250, 552093440, 20631905875, 395001645696, 4771909547076, 41190314035200, 275192443300005, 1502690499112000, 6971521964029766, 28275884687022336, 102456840191225975 (list; graph; refs; listen; history; internal format)
OFFSET

3,2

COMMENTS

Numbers for rhombic- and staggered- hexagonal arrays differ above 4 X 4.

CROSSREFS

Cf. A068239-A068305, A000332, A002417, A027441.

Sequence in context: A028539 A190077 A031854 * A189551 A038011 A205040

Adjacent sequences:  A068242 A068243 A068244 * A068246 A068247 A068248

KEYWORD

nonn

AUTHOR

R. H. Hardin (rhhardin(AT)att.net), Feb 24 2002

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 17 14:50 EST 2012. Contains 206050 sequences.