A121818 - cp's OEIS frontend

A121818 Average of atomic weights of all isotopes of first n elements, rounded to nearest integer.

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

[1, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 20, 21, 22, 23, 24, 25, 26, 27, 28, 30, 31, 32, 33, 34, 35, 36, 38, 39, 40, 41, 43, 44, 45, 46, 47, 49, 50, 51, 52, 53, 55, 56, 57, 58, 60, 61, 62, 63, 65, 66, 67, 69, 70, 71, 72, 74, 75, 76, 78, 79, 80, 81, 83, 84, 85]

cp's OEIS Frontend

A121818 Average of atomic weights of all isotopes of first n elements, rounded to nearest integer.

Table of values

List of values

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

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

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