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

Hints
(Greetings from The On-Line Encyclopedia of Integer Sequences!)
A054121 T(n,n-3), array T as in A054120. 0
1, 9, 39, 114, 261, 507, 879, 1404, 2109, 3021, 4167, 5574, 7269, 9279, 11631, 14352, 17469, 21009, 24999, 29466, 34437, 39939, 45999, 52644, 59901, 67797, 76359, 85614, 95589, 106311, 117807, 130104, 143229, 157209 (list; graph; refs; listen; history; text; internal format)
OFFSET

3,2

LINKS

Table of n, a(n) for n=3..36.

FORMULA

For n>3, a(n) = 3/2 * (3n^3-30n^2+107n-134).

CROSSREFS

Sequence in context: A192608 A158447 A023163 * A139594 A034263 A060929

Adjacent sequences:  A054118 A054119 A054120 * A054122 A054123 A054124

KEYWORD

nonn

AUTHOR

Clark Kimberling

STATUS

approved

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 May 19 19:20 EDT 2013. Contains 225436 sequences.