cp's OEIS Frontend

This is a front-end for the Online Encyclopedia of Integer Sequences, made by Christian Perfect. The idea is to provide OEIS entries in non-ancient HTML, and then to think about how they're presented visually. The source code is on GitHub.

A007656 Mass number of the most abundant isotope of the element with atomic number Z = n.

Table of values

n a(n)
1 1
2 4
3 7
4 9
5 11
6 12
7 14
8 16
9 19
10 20
11 23
12 24
13 27
14 28
15 31
16 32
17 35
18 40
19 39
20 40
21 45
22 48
23 51
24 52
25 55
26 56
27 59
28 58
29 63
30 64
31 69
32 74
33 75
34 80
35 79
36 84
37 85
38 88
39 89
40 90
41 93
42 98
43 98
44 102
45 103
46 106
47 107
48 114
49 115
50 120
51 121
52 130
53 127
54 132
55 133
56 138
57 139
58 140
59 141
60 142
61 145
62 152
63 153
64 158
65 159
66 164
67 165
68 168
69 169
70 174
71 175
72 180
73 181
74 184
75 187
76 192
77 193
78 195
79 197
80 202
81 205
82 208
83 209
84 209
85 210
86 222
87 223
88 226
89 227
90 232
91 231
92 238
93 237
94 244
95 243
96 247
97 247
98 251
99 252
100 257
101 258
102 259
103 260
104 261
105 262
106 263
107 264
108 265
109 266
110 269
111 272
112 277
113 286
114 289
115 289
116 293
117 294
118 294

List of values

[1, 4, 7, 9, 11, 12, 14, 16, 19, 20, 23, 24, 27, 28, 31, 32, 35, 40, 39, 40, 45, 48, 51, 52, 55, 56, 59, 58, 63, 64, 69, 74, 75, 80, 79, 84, 85, 88, 89, 90, 93, 98, 98, 102, 103, 106, 107, 114, 115, 120, 121, 130, 127, 132, 133, 138, 139, 140, 141, 142, 145, 152, 153, 158, 159, 164, 165, 168, 169, 174, 175, 180, 181, 184, 187, 192, 193, 195, 197, 202, 205, 208, 209, 209, 210, 222, 223, 226, 227, 232, 231, 238, 237, 244, 243, 247, 247, 251, 252, 257, 258, 259, 260, 261, 262, 263, 264, 265, 266, 269, 272, 277, 286, 289, 289, 293, 294, 294]