|
%I #5 Mar 31 2012 12:36:37
%S 1,7,32,149,630,2600,10426,41079,159330,611698,2329458,8818874,
%T 33234990,124835120,467743203,1749482957,6535398559,24393753898,
%U 91006458115,339442473410,1266045976128,4722720042212,17621749081077,65775214030886
%N Number of -6..6 arrays x(0..n-1) of n elements with zero sum and no element more than one greater than the previous
%C Column 6 of A199847
%H R. H. Hardin, <a href="/A199845/b199845.txt">Table of n, a(n) for n = 1..165</a>
%e Some solutions for n=6
%e ..0....4....6....6....1....2....4....6....6....5....6....6....3....4....5....5
%e ..1....1....4....5....1....2...-2....2....4....2....4....2....2....2....6...-1
%e ..2....2....0....2....0....1...-1...-1...-2....0....0...-2....2....2....1...-2
%e .-2....0...-1...-5....1....1....0...-1...-2...-3...-2...-3....0....2...-3...-1
%e .-1...-2...-5...-4....1...-1....0...-3...-1...-2...-4...-2...-2...-4...-5....0
%e ..0...-5...-4...-4...-4...-5...-1...-3...-5...-2...-4...-1...-5...-6...-4...-1
%K nonn
%O 1,2
%A _R. H. Hardin_ Nov 11 2011
| 