cp's OEIS Frontend

This is a front-end for the Online Encyclopedia of Integer Sequences, made by Christian Perfect. The idea is to provide OEIS entries in non-ancient HTML, and then to think about how they're presented visually. The source code is on GitHub.

A263700 Number of length n arrays of permutations of 0..n-1 with each element moved by -5 to 5 places and every three consecutive elements having its maximum within 4 of its minimum.

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%I A263700 #4 Oct 24 2015 06:46:11
%S A263700 1,2,6,24,120,288,276,374,732,1673,3692,7784,15360,29532,58532,118037,
%T A263700 240313,487649,980297,1966710,3945522,7932930,15978403,32172852,
%U A263700 64755796,130259920,261986262,527049589,1060407528,2133708989,4293197371
%N A263700 Number of length n arrays of permutations of 0..n-1 with each element moved by -5 to 5 places and every three consecutive elements having its maximum within 4 of its minimum.
%C A263700 Column 5 of A263703.
%H A263700 R. H. Hardin, <a href="/A263700/b263700.txt">Table of n, a(n) for n = 1..210</a>
%F A263700 Empirical: a(n) = a(n-1) +a(n-2) +7*a(n-5) +2*a(n-6) +a(n-7) +5*a(n-8) -4*a(n-9) -3*a(n-10) -3*a(n-11) -4*a(n-12) -4*a(n-14) -a(n-15) +3*a(n-16) -a(n-17) +a(n-19) for n>29
%e A263700 Some solutions for n=7
%e A263700 ..1....0....4....2....4....5....0....0....1....5....0....5....0....1....5....0
%e A263700 ..0....1....6....0....0....1....1....1....0....2....3....6....1....0....6....1
%e A263700 ..2....4....5....1....3....4....4....2....4....1....1....2....4....4....2....4
%e A263700 ..3....5....2....4....1....0....2....5....2....0....5....4....2....2....3....5
%e A263700 ..5....2....3....5....5....3....5....4....6....4....4....0....5....6....0....3
%e A263700 ..6....3....0....6....2....2....3....3....5....3....6....1....6....3....1....6
%e A263700 ..4....6....1....3....6....6....6....6....3....6....2....3....3....5....4....2
%Y A263700 Cf. A263703.
%K A263700 nonn
%O A263700 1,2
%A A263700 _R. H. Hardin_, Oct 24 2015