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

Hints
(Greetings from The On-Line Encyclopedia of Integer Sequences!)
A125101 T(n,k)=k*binomial(n-1,k-1) + fibonacci(k)*binomial(n-1,k) (1<=k<=n). 0
1, 2, 2, 3, 5, 3, 4, 9, 11, 4, 5, 14, 26, 19, 5, 6, 20, 50, 55, 30, 6, 7, 27, 85, 125, 105, 44, 7, 8, 35, 133, 245, 280, 182, 62, 8, 9, 44, 196, 434, 630, 560, 300, 85, 9, 10, 54, 276, 714, 1260, 1428, 1056, 477, 115, 10, 11, 65, 375, 1110, 2310, 3192, 3030, 1905, 745, 155 (list; table; graph; refs; listen; history; internal format)
OFFSET

1,2

COMMENTS

Next to left column = A000096 starting (2, 5, 9, 14...). Next column going to the right = A051925 starting (3, 11, 26, 50,...). Row sums are 1, 4, 11, 28, 69, 167, 400,...

Binomial transform of the bidiagonal matrix with (1,2,3...) in the main diagonal and the Fibonacci numbers (1,1,2,3,5,8,...) in the subdiagonal.

EXAMPLE

First few rows of the triangle are:

1;

2, 2;

3, 5, 3;

4, 9, 11, 4;

5, 14, 26, 19, 5;

6, 20, 50, 55, 30, 6;

7, 27, 85, 125, 105, 44, 7;

8, 35, 133, 245, 280, 182, 62, 8;

...

MAPLE

with(combinat): T:=(n, k)->k*binomial(n-1, k-1)+fibonacci(k)*binomial(n-1, k): for n from 1 to 12 do seq(T(n, k), k=1..n) od; # yields sequence in triangular form

CROSSREFS

Cf. A000096, A051925.

Sequence in context: A197199 A196957 A124727 * A047666 A196696 A196729

Adjacent sequences:  A125098 A125099 A125100 * A125102 A125103 A125104

KEYWORD

nonn,tabl

AUTHOR

Gary W. Adamson (qntmpkt(AT)yahoo.com), Nov 20 2006

EXTENSIONS

Edited by N. J. A. Sloane (njas(AT)research.att.com), Nov 29 2006

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 February 13 17:27 EST 2012. Contains 205523 sequences.