Logo

Greetings from The On-Line Encyclopedia of Integer Sequences!

Hints

Search: id:A153943
Displaying 1-1 of 1 results found. page 1
     Format: long | short | internal | text      Sort: relevance | references | number      Highlight: on | off
A153943 Number of planar n X n X n binary triangular grids symmetric both under 120 degree rotation and reflection with no more than 5 ones in any 4 X 4 X 4 subtriangle. +0
1
1, 2, 2, 3, 4, 8, 14, 49, 79, 253, 741, 2335, 6399, 37905, 102246, 593203, 2884877, 16569870, 80670284, 832584915, 3998999249, 40528587997, 352270529241, 3516190442125, 29997079375598, 543310308646601, 4559849026688799 (list; graph; listen)
OFFSET

0,2
CROSSREFS

Sequence in context: A147558 A032243 A153922 this_sequence A049309 A022405 A093927

Adjacent sequences: A153940 A153941 A153942 this_sequence A153944 A153945 A153946

KEYWORD

nonn

AUTHOR

Ron Hardin (rhhardin(AT)att.net) Jan 03 2009

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 7 08:40 EST 2009. Contains 170430 sequences.

AT&T Labs Research

Legal Notice
© 2009 AT&T Intellectual Property. All Rights Reserved.