A290221 - cp's OEIS frontend

A290221 Number of elements added at n-th stage to the structure of the narrow cross described in A290220.

n	a(n)
0	0
1	2
2	4
3	4
4	8
5	8
6	8
7	8
8	16
9	12
10	8
11	16
12	12
13	8
14	16
15	12
16	8
17	16
18	12
19	8
20	16
21	12
22	8
23	16
24	12
25	8
26	16
27	12
28	8
29	16
30	12
31	8
32	16
33	12
34	8
35	16
36	12
37	8
38	16
39	12
40	8
41	16
42	12
43	8
44	16
45	12
46	8
47	16
48	12
49	8
50	16
51	12
52	8
53	16
54	12
55	8
56	16
57	12
58	8
59	16
60	12
61	8
62	16
63	12
64	8
65	16
66	12
67	8
68	16
69	12
70	8
71	16
72	12
73	8
74	16
75	12
76	8
77	16
78	12
79	8
80	16
81	12
82	8
83	16
84	12
85	8
86	16
87	12

[0, 2, 4, 4, 8, 8, 8, 8, 16, 12, 8, 16, 12, 8, 16, 12, 8, 16, 12, 8, 16, 12, 8, 16, 12, 8, 16, 12, 8, 16, 12, 8, 16, 12, 8, 16, 12, 8, 16, 12, 8, 16, 12, 8, 16, 12, 8, 16, 12, 8, 16, 12, 8, 16, 12, 8, 16, 12, 8, 16, 12, 8, 16, 12, 8, 16, 12, 8, 16, 12, 8, 16, 12, 8, 16, 12, 8, 16, 12, 8, 16, 12, 8, 16, 12, 8, 16, 12]

cp's OEIS Frontend

A290221 Number of elements added at n-th stage to the structure of the narrow cross described in A290220.

Table of values

List of values

n	a(n)
0	0
1	2
2	4
3	4
4	8
5	8
6	8
7	8
8	16
9	12
10	8
11	16
12	12
13	8
14	16
15	12
16	8
17	16
18	12
19	8
20	16
21	12
22	8
23	16
24	12
25	8
26	16
27	12
28	8
29	16
30	12
31	8
32	16
33	12
34	8
35	16
36	12
37	8
38	16
39	12
40	8
41	16
42	12
43	8
44	16
45	12
46	8
47	16
48	12
49	8
50	16
51	12
52	8
53	16
54	12
55	8
56	16
57	12
58	8
59	16
60	12
61	8
62	16
63	12
64	8
65	16
66	12
67	8
68	16
69	12
70	8
71	16
72	12
73	8
74	16
75	12
76	8
77	16
78	12
79	8
80	16
81	12
82	8
83	16
84	12
85	8
86	16
87	12

n	a(n)
0	0
1	2
2	4
3	4
4	8
5	8
6	8
7	8
8	16
9	12
10	8
11	16
12	12
13	8
14	16
15	12
16	8
17	16
18	12
19	8
20	16
21	12
22	8
23	16
24	12
25	8
26	16
27	12
28	8
29	16
30	12
31	8
32	16
33	12
34	8
35	16
36	12
37	8
38	16
39	12
40	8
41	16
42	12
43	8
44	16
45	12
46	8
47	16
48	12
49	8
50	16
51	12
52	8
53	16
54	12
55	8
56	16
57	12
58	8
59	16
60	12
61	8
62	16
63	12
64	8
65	16
66	12
67	8
68	16
69	12
70	8
71	16
72	12
73	8
74	16
75	12
76	8
77	16
78	12
79	8
80	16
81	12
82	8
83	16
84	12
85	8
86	16
87	12

n	a(n)
0	0
1	2
2	4
3	4
4	8
5	8
6	8
7	8
8	16
9	12
10	8
11	16
12	12
13	8
14	16
15	12
16	8
17	16
18	12
19	8
20	16
21	12
22	8
23	16
24	12
25	8
26	16
27	12
28	8
29	16
30	12
31	8
32	16
33	12
34	8
35	16
36	12
37	8
38	16
39	12
40	8
41	16
42	12
43	8
44	16
45	12
46	8
47	16
48	12
49	8
50	16
51	12
52	8
53	16
54	12
55	8
56	16
57	12
58	8
59	16
60	12
61	8
62	16
63	12
64	8
65	16
66	12
67	8
68	16
69	12
70	8
71	16
72	12
73	8
74	16
75	12
76	8
77	16
78	12
79	8
80	16
81	12
82	8
83	16
84	12
85	8
86	16
87	12