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%I #3 Mar 31 2012 12:35:48
%S 1,8,91,1112,14168,184564,2439577,32572164,438101477,5925607074,
%T 80499964475,1097457242138,15004835665400,205644110230912,
%U 2824097290775308,38850138735886138,535243777169316325
%N Number of sequences of n integers p(i) i=0..n-1 with 0<=p(i)<=7*i and -7<p(i)-p(i-1)<=7
%C Paths down a n-high staggered-grid minimally right-leaning right triangle with interior neighbor fanout 2*7
%C Column 7 of A180915
%H R. H. Hardin, <a href="/A180912/b180912.txt">Table of n, a(n) for n=1..100</a>
%K nonn
%O 1,2
%A _R. H. Hardin_ Sep 23 2010
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