A285394 - cp's OEIS frontend

A285394 Start with a single cell at coordinates (0, 0, 0), then iteratively subdivide the grid into 3 X 3 X 3 cells and remove the cells whose sum of modulo 2 coordinates is 0 or 1; a(n) is the number of cells after n iterations.

n	a(n)
0	1
1	7
2	116
3	1984
4	34112
5	587008
6	10102784
7	173879296
8	2992652288
9	51506839552
10	886489481216
11	15257461325824
12	262597731418112
13	4519596484722688
14	77787238586384384
15	1338804140460998656
16	23042295357073522688
17	396583308399342518272
18	6825635990847321276416

[1, 7, 116, 1984, 34112, 587008, 10102784, 173879296, 2992652288, 51506839552, 886489481216, 15257461325824, 262597731418112, 4519596484722688, 77787238586384384, 1338804140460998656, 23042295357073522688, 396583308399342518272, 6825635990847321276416]

cp's OEIS Frontend

A285394 Start with a single cell at coordinates (0, 0, 0), then iteratively subdivide the grid into 3 X 3 X 3 cells and remove the cells whose sum of modulo 2 coordinates is 0 or 1; a(n) is the number of cells after n iterations.

Table of values

List of values