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A180903 Number of sequences of n integers p(i) i=0..n-1 with 0<=p(i)<=7*i and |p(i)-p(i-1)|<=7 1
1, 8, 92, 1156, 15226, 205990, 2836590, 39552570, 556668807, 7891281877, 112509947855, 1611636640353, 23175701167135, 334368287095731, 4837685812173771, 70162685549241499, 1019758730416577463 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,2

COMMENTS

Paths down a n-high rectangular-grid right triangle with interior neighbor fanout 2*7+1

Column 7 of A180906

LINKS

R. H. Hardin, Table of n, a(n) for n=1..100

CROSSREFS

Sequence in context: A221765 A292842 A133271 * A266427 A239644 A099142

Adjacent sequences:  A180900 A180901 A180902 * A180904 A180905 A180906

KEYWORD

nonn

AUTHOR

R. H. Hardin Sep 23 2010

STATUS

approved

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Last modified October 26 00:52 EDT 2021. Contains 348256 sequences. (Running on oeis4.)