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!)
A152410 Column 3 of triangle A152406; also, column 0 of matrix 4th power of A152406. 4
1, 4, 28, 260, 2916, 37712, 547240, 8751688, 152309648, 2857598164, 57379111732, 1225920973324, 27737038620452, 661937827915872, 16605857832896944, 436636765049489648, 12002769920717089856, 344160801015503753892 (list; graph; refs; listen; history; text; internal format)
OFFSET

0,2

COMMENTS

Matrix powers of triangle T=A152406 satisfy:

column k of T^(j+1) = column j of T^(k+1) for all j>=0, k>=0.

LINKS

Table of n, a(n) for n=0..17.

CROSSREFS

Cf. A152406; A152407, A152408, A152409.

Sequence in context: A294189 A141004 A217806 * A177403 A196523 A260775

Adjacent sequences:  A152407 A152408 A152409 * A152411 A152412 A152413

KEYWORD

nonn

AUTHOR

Paul D. Hanna, Dec 05 2008

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 July 30 22:16 EDT 2021. Contains 346365 sequences. (Running on oeis4.)