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!)
A141660 Triangle read by rows: T(n,k) = 2^k*A123125(n,k). 0
1, 0, 2, 0, 2, 4, 0, 2, 16, 8, 0, 2, 44, 88, 16, 0, 2, 104, 528, 416, 32, 0, 2, 228, 2416, 4832, 1824, 64, 0, 2, 480, 9528, 38656, 38112, 7680, 128, 0, 2, 988, 34344, 249904, 499808, 274752, 31616, 256, 0, 2, 2008, 116864, 1411744, 4998080, 5646976, 1869824 (list; table; graph; refs; listen; history; text; internal format)
OFFSET
1,3
COMMENTS
Triangle T(n,k), 0 <= k <= n, read by rows given by [0,1,0,2,0,3,0,4,0,5,0,6,...] DELTA [2,0,4,0,6,0,8,0,10,0,...] where DELTA is the operator defined in A084938. - Philippe Deléham, Sep 15 2008
LINKS
FORMULA
T(n,k) = 2^k*A123125(n,k). - Philippe Deléham, Sep 15 2008
Sum_{k=0..n} T(n,k) = A000629(n). - Philippe Deléham, Nov 19 2011
EXAMPLE
{1},
{0, 2},
{0, 2, 4},
{0, 2, 16, 8},
{0, 2, 44, 88, 16},
{0, 2, 104, 528, 416, 32},
{0, 2, 228, 2416, 4832, 1824, 64},
{0, 2, 480, 9528, 38656, 38112, 7680, 128}, ...
CROSSREFS
Sequence in context: A221683 A332760 A199335 * A368500 A209699 A115273
KEYWORD
nonn,easy,tabl
AUTHOR
EXTENSIONS
Example corrected by Philippe Deléham, Oct 16 2008
New name using formula by Philippe Deléham, Joerg Arndt, Jan 25 2020
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 July 21 22:27 EDT 2024. Contains 374478 sequences. (Running on oeis4.)