Point-to-line, straight-line sub-plane, planar sub-space

As shown in the following table:

X	0	1	2	3	4	5	6	7	8	9	N
X points can be divided into the number of parts of a line	1	2	3	4	5	6	7	8	9	10	An=n+1
X line can divide the plane into how many parts B	1	2	4	7	11	16	22	29	37	46	Bn=bn-1+an-1 = N (n+1)/2+1
X plane can divide the space into the number of parts C	1	2	4	8	15	26	42	64	93	130	Cn=cn-1+bn-1