The On-Line Encyclopedia of Integer Sequences (OEIS)

Revision History for A127833 (Bold, blue-underlined text is an addition; faded, red-underlined text is a ~~deletion~~.)
Showing all changes.

T(3n,2n), where T is the array in A127832.
(history; published version)

#2 by Russ Cox at Fri Mar 30 18:57:10 EDT 2012

AUTHOR

_Clark Kimberling (ck6(AT)evansville.edu), _, Feb 01 2007

Discussion

Fri Mar 30

18:57

OEIS Server: https://oeis.org/edit/global/285

#1 by N. J. A. Sloane at Fri May 11 03:00:00 EDT 2007

NAME

T(3n,2n), where T is the array in A127832.

DATA

0, 4, 54, 954, 19116, 412430, 9343712, 219173604, 5276758498, 129640779394

OFFSET

0,2

EXAMPLE

The 4 UR paths counted by a(1)=T(3,2) are RRRUU, RRURU, UURRR, URURR. These

paths touch the line y=2x/3 only at the lattice points (0,0) and (3,2).

CROSSREFS

KEYWORD

nonn

AUTHOR

Clark Kimberling (ck6(AT)evansville.edu), Feb 01 2007

STATUS

approved