%I#4 2014年9月2日08:25:44

%S 2,6810812135776281883019906740162700376766650653696053370，

%电话：130197276204516607317212889447660835871026874287627071156，

%电话：208603619640045293146889603603337631346190246312435636902088232940

%N长度为7+4 0..N的数组的数量，在任何连续五项中没有配对，总计正好为N

%A246737的C行7

%H R.H.Hardin，n表，n=1..56的a（n）</a>

%F经验公式：a（n）=3*a（n-1）+6*a（n-2）-26*a（n-3）-9*a（ns-4）+99*a（nm-5）-24*a（6-6）-216*a（7-7）+126*a（-n-8）+294*a（-9）-252*a*α（n-18）+6α（n-19）+3β（n-20）-a（n-21）

%e n=4的一些解决方案

%e。。2....2....0....1....1....0....2....3....0....0....3....2....1....1....2....0

%e。。1....0....2....2....4....1....3....2....1....2....0....3....1....0....0....0

%e。。1....0....1....1....4....2....0....4....0....1....0....3....1....1....0....0

%e。。0....1....1....1....1....0....3....3....1....1....0....4....1....0....0....0

%e。。1....1....1....4....4....1....0....3....0....1....0....3....1....2....0....0

%e。。2....0....0....4....1....1....3....3....1....1....0....3....1....0....1....0

%e。。0....2....1....4....1....1....3....2....0....1....0....4....0....0....1....0

%e。。1….1….1….1….2….1….3….3….0….0….1….3….1….1….1….1….0

%e。。1....1....2....4....1....0....3....4....0....1....1....4....1....0....1....3

%e。。0....0....0....1....1....2....4....3....0....0....2....4....0....0....2....3

%e。。2....0....1....2....0....1....3....3....3....2....1....2....1....2....1....0

%K nonn公司

%O 1,1号机组

%A R.H.Hardin，2014年9月2日