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.

A087052 Lunar triangular numbers: 0+1+2+3+...+n, where + is lunar addition.

Table of values

n a(n)
0 0
1 1
2 2
3 3
4 4
5 5
6 6
7 7
8 8
9 9
10 19
11 19
12 19
13 19
14 19
15 19
16 19
17 19
18 19
19 19
20 29
21 29
22 29
23 29
24 29
25 29
26 29
27 29
28 29
29 29
30 39
31 39
32 39
33 39
34 39
35 39
36 39
37 39
38 39
39 39
40 49
41 49
42 49
43 49
44 49
45 49
46 49
47 49
48 49
49 49
50 59
51 59
52 59
53 59
54 59
55 59
56 59
57 59
58 59
59 59
60 69
61 69
62 69
63 69
64 69
65 69
66 69
67 69
68 69
69 69
70 79
71 79
72 79
73 79
74 79
75 79
76 79
77 79
78 79
79 79
80 89
81 89
82 89
83 89
84 89
85 89
86 89
87 89
88 89
89 89
90 99
91 99
92 99
93 99
94 99
95 99
96 99
97 99
98 99
99 99
100 199
101 199
102 199
103 199
104 199
105 199
106 199
107 199
108 199
109 199
110 199
111 199
112 199
113 199
114 199
115 199
116 199
117 199
118 199
119 199
120 199

List of values

[0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 19, 19, 19, 19, 19, 19, 19, 19, 19, 19, 29, 29, 29, 29, 29, 29, 29, 29, 29, 29, 39, 39, 39, 39, 39, 39, 39, 39, 39, 39, 49, 49, 49, 49, 49, 49, 49, 49, 49, 49, 59, 59, 59, 59, 59, 59, 59, 59, 59, 59, 69, 69, 69, 69, 69, 69, 69, 69, 69, 69, 79, 79, 79, 79, 79, 79, 79, 79, 79, 79, 89, 89, 89, 89, 89, 89, 89, 89, 89, 89, 99, 99, 99, 99, 99, 99, 99, 99, 99, 99, 199, 199, 199, 199, 199, 199, 199, 199, 199, 199, 199, 199, 199, 199, 199, 199, 199, 199, 199, 199, 199]