login
The OEIS is supported by the many generous donors to the OEIS Foundation.

 

Logo
Hints
(Greetings from The On-Line Encyclopedia of Integer Sequences!)
A167145 Column 0 of the matrix 5th power of triangle A167015. 4
1, 5, 20, 105, 755, 7206, 86895, 1264270, 21399545, 410288306, 8742115145, 204205278908, 5177537318502, 141430336450640, 4138123770051847, 129084367791600672, 4276207014911374799, 149935339089873769895 (list; graph; refs; listen; history; text; internal format)
OFFSET
0,2
COMMENTS
This sequence equals the reversal of row 5 of A167015 (when infinitely extended to the left), and then shifted left 1 place.
In triangle T=A167015, row n of T equals the initial n terms in column 0 of matrix power T^n, reversed and with an appended '1'.
The definition of A167015 may be relaxed to allow the triangle to extend indefinitely also to the left, making each row infinite.
LINKS
CROSSREFS
Sequence in context: A109500 A137961 A334716 * A277032 A300490 A020039
KEYWORD
nonn
AUTHOR
Paul D. Hanna, Oct 28 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 | Recents
The OEIS Community | Maintained by The OEIS Foundation Inc.

License Agreements, Terms of Use, Privacy Policy. .

Last modified June 19 19:50 EDT 2024. Contains 373507 sequences. (Running on oeis4.)