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 A175895 Number of lattice paths from (0,0) to (n,n) using steps S={(k,0),(0,k),(1,1)|0
 1, 2, 9, 50, 314, 2116, 14949, 109246, 818978, 6263072, 48668366, 383182648, 3050196328, 24506969724, 198482172753, 1618700191002, 13281652367078, 109564878995724, 908171084052990, 7560049450347964, 63176859344766204 (list; graph; refs; listen; history; text; internal format)
 OFFSET 0,2 LINKS EXAMPLE a(2)=9 because we can reach (2,2) in the following ways: (1,0),(1,0),(0,1),(0,1) (1,0),(1,0),(0,2) (2,0),(0,1),(0,1) (2,0),(0,2) (1,0),(1,1),(0,1) (1,0),(0,1),(1,1) (1,1),(1,0),(0,1) (1,1),(0,1),(1,0) (1,1)(1,1) CROSSREFS Cf. A006318 Sequence in context: A211789 A192945 A271960 * A020087 A277378 A079836 Adjacent sequences:  A175892 A175893 A175894 * A175896 A175897 A175898 KEYWORD nonn AUTHOR Eric Werley, Dec 05 2010 STATUS approved

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Last modified July 30 17:21 EDT 2021. Contains 346359 sequences. (Running on oeis4.)