%I#13 2023年9月7日04:43:03
%S 1,2,3,4,0,7,8,5,6,15,16,0,0,31,32,9,11,12,14,63,64,0,10,0,13,0127,
%T 128,17,0,23,24,0,3025256,0,19,0,0,28,0511512,33,18,20,47,48,
%U 27,29,6210231024,0,0,22,0,25,0,020472048,65,35,39,21,95,96,26,56
%N A054424展开为正规三角形数组,其中x和y不是相对素数的(x,y)处为零。
%p位置_in_whole_SB_tree_or_zero:=(n,m)->`如果`((1=gcd(n,m)),(frac2position_in_wrole_SB_tree(n/m)),,(0));
%p A054424_as_array:=n->position_in_whole_SB_tree_or_zero(((n-((trinv(n)*(trinv(n)-1))/2))+1),((((trinv(n)-1)*(((1/2)*trinv(n))+1)));
%三层:=n->楼层((1+平方米(1+8*n))/2);#给出三角形数的积分逆
%Y参见A054424、A054431。
%K non,tabl,不错
%O 1,2号机组
%安蒂·卡图恩_