Abstract
We study the ideal of all bounded linear operators between any arbitrary Banach spaces whose sequence of approximation numbers belong to the generalized Cesáro sequence space and Orlicz sequence space
ℓ
M
, when
M
(
t
)
=
t
p
,
0
<
p
<
∞
; our results coincide with that known for the classical sequence space
ℓ
p
.