#来自在线整数序列百科全书的问候!http://oeis.org/搜索:id:a129610显示1/1%I A129610%S A129610 0,1,3,2,7,8,5,4,6,17,18,20,21,22,11,12,13,9,10,15,14,16,19,45,46,48,%电话A129610 49,50,54,55,57,58,59,61,62,63,64,28,29,30,31,32,33,34,35,23,24,36,25,%U A129610 26,27,39,40,41,37,38,43,42,44,47,52,51,53,56,60129130132133134%N A129610加泰罗尼亚自同构的签名置换,A089840的第65352行。%C A129610自同构*A074680=脊椎(*A129610)。参见A122203中给出的定义。%H A129610 A.卡图宁,n=20A中的n..0%H A129610 A.卡图宁,Prolog程序,说明了这种和类似的非递归Catalan自同构的构造。%沪A129610Catalan自同构签名置换的索引项%这些结构的自同构(a1610)的实现%o A129610(定义(*A129610 s)(条件((对)(let((t(*A074680 s))))(cons(car t)(*A074679(cdr t))))(其他s)))%o A129610(定义(*A129610!s)(条件((对)(*A074680!s)(*A074679!(cdr s)))s)%Y A129610反向:A129609。%K A129610无%O A129610 0,3%2007年5月22日,A A129610Antti Karttunen#根据OEIS最终用户许可协议提供内容:http://oeis.org/LICENSE