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A175937 Number of lattice paths from (0,0) to (n,n) using steps S={(k,0),(0,k),(r,r)|0<k<=4,0<r<=2} which never go above the line y=x. 4
1, 2, 10, 62, 448, 3464, 28111, 236022, 2033145, 17867442, 159558635, 1443747386, 13207922431, 121962046864, 1135246916024, 10640772522150, 100346005711723, 951400275042466, 9063703952844960, 86718277215053218, 832901296331740527 (list; graph; refs; listen; history; text; internal format)
OFFSET
0,2
LINKS
CROSSREFS
Sequence in context: A107026 A107841 A175936 * A175939 A192942 A307364
KEYWORD
nonn
AUTHOR
Eric Werley, Dec 06 2010
STATUS
approved

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Last modified April 17 13:58 EDT 2024. Contains 371764 sequences. (Running on oeis4.)