A168208 - cp's OEIS frontend

A168208 Irregular table of the number of electrons of the n-th element of the PSE in atomic shells, read by rows.

n	a(n)
1	1
2	2
3	2
4	1
5	2
6	2
7	2
8	3
9	2
10	4
11	2
12	5
13	2
14	6
15	2
16	7
17	2
18	8
19	2
20	8
21	1
22	2
23	8
24	2
25	2
26	8
27	3
28	2
29	8
30	4
31	2
32	8
33	5
34	2
35	8
36	6
37	2
38	8
39	7
40	2
41	8
42	8
43	2
44	8
45	8
46	1
47	2
48	8
49	8
50	2
51	2
52	8
53	9
54	2
55	2
56	8
57	10
58	2
59	2
60	8
61	11
62	2
63	2
64	8
65	13
66	1
67	2
68	8
69	13
70	2
71	2
72	8
73	14
74	2
75	2
76	8
77	15
78	2
79	2
80	8
81	16
82	2
83	2
84	8
85	18
86	1
87	2
88	8
89	18
90	2
91	2
92	8
93	18
94	3
95	2
96	8
97	18
98	4
99	2

[1, 2, 2, 1, 2, 2, 2, 3, 2, 4, 2, 5, 2, 6, 2, 7, 2, 8, 2, 8, 1, 2, 8, 2, 2, 8, 3, 2, 8, 4, 2, 8, 5, 2, 8, 6, 2, 8, 7, 2, 8, 8, 2, 8, 8, 1, 2, 8, 8, 2, 2, 8, 9, 2, 2, 8, 10, 2, 2, 8, 11, 2, 2, 8, 13, 1, 2, 8, 13, 2, 2, 8, 14, 2, 2, 8, 15, 2, 2, 8, 16, 2, 2, 8, 18, 1, 2, 8, 18, 2, 2, 8, 18, 3, 2, 8, 18, 4, 2]

cp's OEIS Frontend

A168208 Irregular table of the number of electrons of the n-th element of the PSE in atomic shells, read by rows.

Table of values

List of values

n	a(n)
1	1
2	2
3	2
4	1
5	2
6	2
7	2
8	3
9	2
10	4
11	2
12	5
13	2
14	6
15	2
16	7
17	2
18	8
19	2
20	8
21	1
22	2
23	8
24	2
25	2
26	8
27	3
28	2
29	8
30	4
31	2
32	8
33	5
34	2
35	8
36	6
37	2
38	8
39	7
40	2
41	8
42	8
43	2
44	8
45	8
46	1
47	2
48	8
49	8
50	2
51	2
52	8
53	9
54	2
55	2
56	8
57	10
58	2
59	2
60	8
61	11
62	2
63	2
64	8
65	13
66	1
67	2
68	8
69	13
70	2
71	2
72	8
73	14
74	2
75	2
76	8
77	15
78	2
79	2
80	8
81	16
82	2
83	2
84	8
85	18
86	1
87	2
88	8
89	18
90	2
91	2
92	8
93	18
94	3
95	2
96	8
97	18
98	4
99	2

n	a(n)
1	1
2	2
3	2
4	1
5	2
6	2
7	2
8	3
9	2
10	4
11	2
12	5
13	2
14	6
15	2
16	7
17	2
18	8
19	2
20	8
21	1
22	2
23	8
24	2
25	2
26	8
27	3
28	2
29	8
30	4
31	2
32	8
33	5
34	2
35	8
36	6
37	2
38	8
39	7
40	2
41	8
42	8
43	2
44	8
45	8
46	1
47	2
48	8
49	8
50	2
51	2
52	8
53	9
54	2
55	2
56	8
57	10
58	2
59	2
60	8
61	11
62	2
63	2
64	8
65	13
66	1
67	2
68	8
69	13
70	2
71	2
72	8
73	14
74	2
75	2
76	8
77	15
78	2
79	2
80	8
81	16
82	2
83	2
84	8
85	18
86	1
87	2
88	8
89	18
90	2
91	2
92	8
93	18
94	3
95	2
96	8
97	18
98	4
99	2

n	a(n)
1	1
2	2
3	2
4	1
5	2
6	2
7	2
8	3
9	2
10	4
11	2
12	5
13	2
14	6
15	2
16	7
17	2
18	8
19	2
20	8
21	1
22	2
23	8
24	2
25	2
26	8
27	3
28	2
29	8
30	4
31	2
32	8
33	5
34	2
35	8
36	6
37	2
38	8
39	7
40	2
41	8
42	8
43	2
44	8
45	8
46	1
47	2
48	8
49	8
50	2
51	2
52	8
53	9
54	2
55	2
56	8
57	10
58	2
59	2
60	8
61	11
62	2
63	2
64	8
65	13
66	1
67	2
68	8
69	13
70	2
71	2
72	8
73	14
74	2
75	2
76	8
77	15
78	2
79	2
80	8
81	16
82	2
83	2
84	8
85	18
86	1
87	2
88	8
89	18
90	2
91	2
92	8
93	18
94	3
95	2
96	8
97	18
98	4
99	2