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A175891 Number of lattice paths from (0,0) to (n,n) using steps S={(k,0),(0,k)|0<k<=4} which never go above the line y=x. 0
1, 1, 5, 29, 185, 1226, 8553, 61642, 455337, 3429002, 26229691, 203237747, 1591820564, 12582288455, 100241042348, 804090987555, 6488942266564, 52644171729304, 429123506792664, 3512829202462126, 28866426741057006 (list; graph; refs; listen; history; text; internal format)
OFFSET

0,3

LINKS

Table of n, a(n) for n=0..20.

CROSSREFS

Cf. A000103, A122951, A175883

Sequence in context: A194723 A190917 A153391 * A081336 A127846 A059231

Adjacent sequences:  A175888 A175889 A175890 * A175892 A175893 A175894

KEYWORD

nonn

AUTHOR

Eric Werley, Dec 05 2010

STATUS

approved

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Last modified June 19 11:55 EDT 2013. Contains 226404 sequences.