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A180904 Number of sequences of n integers p(i) i=0..n-1 with 0<=p(i)<=8*i and |p(i)-p(i-1)|<=8 1

%I #3 Mar 31 2012 12:35:48

%S 1,9,117,1665,24843,380805,5941923,93886185,1497389568,24055051863,

%T 388666882798,6309382040993,102822842612560,1681209772089665,

%U 27566207388086092,453095823002488325,7463239601084222332

%N Number of sequences of n integers p(i) i=0..n-1 with 0<=p(i)<=8*i and |p(i)-p(i-1)|<=8

%C Paths down a n-high rectangular-grid right triangle with interior neighbor fanout 2*8+1

%C Column 8 of A180906

%H R. H. Hardin, <a href="/A180904/b180904.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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Last modified March 29 01:36 EDT 2024. Contains 371264 sequences. (Running on oeis4.)