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A256551
Triangle read by rows, T(n,k) matrix inverse of A256550, for n>=0 and 0<=k<=n.
1
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, -15, 1, 0, 581, 1008, -1575, 175, 105, -21, 1, 0, -11069, 16268, 9408, -7350, 490, 196, -28, 1, 0, 20784, -398484, 195216, 56448, -26460, 1176, 336, -36, 1
OFFSET
0,9
FORMULA
T(n+1,n) = -A000217(n).
T(n+2,n) = A002415(n+1).
For T(n,1) compare A006542.
EXAMPLE
Triangle starts:
[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, -15, 1]
[0, 581, 1008, -1575, 175, 105, -21, 1]
CROSSREFS
KEYWORD
sign,tabl,easy
AUTHOR
Peter Luschny, Apr 01 2015
STATUS
approved