login
The OEIS Foundation is supported by donations from users of the OEIS and by a grant from the Simons Foundation.

 

Logo


Hints
(Greetings from The On-Line Encyclopedia of Integer Sequences!)
A154083 Number of planar triangular n X n X n nonnegative integer grids symmetric under 120 degree rotation with every similarly oriented 5 X 5 X 5 subtriangle summing to 11. 0
0, 331, 1896, 0, 2038, 7351, 0, 4070, 11033, 0, 1729 (list; graph; refs; listen; history; text; internal format)
OFFSET

5,2

LINKS

Table of n, a(n) for n=5..15.

CROSSREFS

Sequence in context: A038647 A152311 A255155 * A237475 A060894 A002228

Adjacent sequences:  A154080 A154081 A154082 * A154084 A154085 A154086

KEYWORD

nonn

AUTHOR

R. H. Hardin Jan 04 2009

STATUS

approved

Lookup | Welcome | Wiki | Register | Music | Plot 2 | Demos | Index | Browse | More | WebCam
Contribute new seq. or comment | Format | Style Sheet | Transforms | Superseeker | Recent
The OEIS Community | Maintained by The OEIS Foundation Inc.

License Agreements, Terms of Use, Privacy Policy. .

Last modified February 24 07:05 EST 2020. Contains 332199 sequences. (Running on oeis4.)