Logo

Greetings from The On-Line Encyclopedia of Integer Sequences!

Hints

Search: id:A153965
Displaying 1-1 of 1 results found. page 1
     Format: long | short | internal | text      Sort: relevance | references | number      Highlight: on | off
A153965 Number of planar n X n X n binary triangular grids symmetric under 120 degree rotation with no more than 9 ones in any 4 X 4 X 4 subtriangle. +0
1
1, 2, 2, 4, 15, 31, 126, 927, 3933, 31429, 472959, 4005742, 63878219, 1917687587, 32433255622, 1032580394091, 61890749905798, 2090664356692297, 132950076813594995, 15915454829832076325, 1073793991171675728498 (list; graph; listen)
OFFSET

0,2
CROSSREFS

Sequence in context: A153959 A006205 A153968 this_sequence A121221 A122598 A087783

Adjacent sequences: A153962 A153963 A153964 this_sequence A153966 A153967 A153968

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 November 27 22:38 EST 2009. Contains 167602 sequences.

AT&T Labs Research

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