A256551 - OEIS

%I #7 Apr 19 2015 08:50:29

%S 1,0,1,0,-1,1,0,1,-3,1,0,1,6,-6,1,0,-15,10,20,-10,1,0,48,-225,50,50,

%T -15,1,0,581,1008,-1575,175,105,-21,1,0,-11069,16268,9408,-7350,490,

%U 196,-28,1,0,20784,-398484,195216,56448,-26460,1176,336,-36,1

%N Triangle read by rows, T(n,k) matrix inverse of A256550, for n>=0 and 0<=k<=n.

%F T(n+1,n) = -A000217(n).

%F T(n+2,n) = A002415(n+1).

%F For T(n,1) compare A006542.

%e Triangle starts:

%e [1]

%e [0,   1]

%e [0,  -1,    1]

%e [0,   1,   -3,     1]

%e [0,   1,    6,    -6,   1]

%e [0, -15,   10,    20, -10,   1]

%e [0,  48, -225,    50,  50, -15,   1]

%e [0, 581, 1008, -1575, 175, 105, -21, 1]

%Y Cf. A000217, A002415, A006542, A256550.

%K sign,tabl,easy

%O 0,9

%A _Peter Luschny_, Apr 01 2015